Original subtitles

This obviously shows that it's you.

(suspenseful music)

ARI: See? I'm a huge fan. I even took a photo with him.

Isn't that watch gorgeous? Apparently, it's one of a kind.

It's custom-made by a Swiss artisan.

I know who he is.

(suspenseful music continues)

EUNKANG: It's Jo Hansol.

He was looking for the laptop because of the watch that can identify him.

You're right. It's the same.

Do you think the guy who came to our place was Jo Hansol's man too?

I think so.

I should hurry and tell Detective Kang about this.

EUNKANG: Hang on, Seunghyun.

If the guy in the video is really Jo Hansol,

wouldn't it be better to ask

your father to take care of it?

My father?

EUNKANG: He's a high-ranking official,

so it'd be better if he takes care of it.

Plus, Detective Kang is in Gangneung. It'll be a hassle to come here.

That's true, but...

NAMGI: Don't show the video to anyone until I get there.

Not even the police.

EUNKANG: To be honest,

we don't really know Detective Kang.

Isn't your father more trustworthy?

(suspenseful music)

(music fades)

So you're saying this man is Jo Hansol.

I think so.

We'll have to investigate further, though.

You said...

Gangneung Police Station is working on the dead woman's case?

I talked to the detective in charge earlier,

and he said the cause of her death was a drug overdose.

Judging by what I've seen,

I think this video has something to do with Min Haeji's death.

All right.

I'll hand this laptop...

to the investigations unit.

But I was supposed to meet the detective.

He's coming from Gangneung tonight.

-Who's the detective? -His name is Kang Namgi.

(ominous music)

Mm-mm. (clicks tongue)

This is too big a case for a detective from a small regional office.

I'll take care of it, so don't worry about it.

(intense music)

And make sure your friends don't speak about this.

Yes, I will.

GANGNEUNG

LEE (over phone): We checked Min Haeji's travel history,

and she visited Guam early last month with Jo Hansol,

CEO of Changui Investment.

Why did you want to look into this?

Did something happen?

I'll tell you later. Okay. Thanks.

OPERATOR: The person you have reached is unavailable. Please...

(phone beeps)

(keypad clacking)

SEUNGHYUN: Sir, did you leave already?

I don't think you have to come.

I gave the laptop to my father, who is also a cop.

You can rely on him.

TAK: Well done.

I'm sure your father will take care of it.

Don't worry.

But you did tell Detective Kang about it, though, right?

That Jo Hansol was filmed in it.

Not yet.

(both panting)

I was going to when we meet, but my father said

I shouldn't tell anyone about it.

Gosh, I'm running out of breath.

Are you already tired?

We just started to run.

Hey, you're not going to bed unless you run 10km today. Okay?

(chuckles)

Gosh. Stop nagging me. I'm hanging up.

(beeps)

(crickets creaking)

(foreboding music)

-(phone beeps) -(phone line ringing)

It's Yulma Park.

(foreboding music continues)

(cellphone buzzing)

-Yes, Detective. -NAMGI: What are you talking about?

I told you not to give it to anyone!

Sorry.

But you don't have to worry. My father is a cop too.

Not Commissioner Wi!

-You don't know what kind of person he is. -What?

-What do you... -NAMGI: Was there...

Jo Hansol in the video?

How did you...

(sighs)

(sighs) Where are you?

SEUNGHYUN: In Yulma Park.

(suspenseful music)

-(engine revving) -(tire screeches)

(tire screeches)

(keypad clacking)

(phone line ringing)

INCOMING CALL SON

(sighs)

(ominous music)

(theme music)

EPISODE 13

(sighs) I'm so glad

it ended up in your hands.

(exhales sharply) This is the last time.

I don't care about the Sinyu Club or whatever. If you ever blackmail me again,

then we'll all be done for.

We've been in the same boat for ages now. Can't we just get along?

-I said I'd treat you as a close friend... -Shut up.

I've never been friends with the likes of you.

(laughing)

HANSOL: Don't be like that.

If you wanted to end this, you should have done it ten years ago.

(suspenseful music)

(group clamoring)

(indistinct chattering)

(Inmyeon laughing)

Oh, you're here.

(Inmyeon laughing continues)

HYUNTAE: Well, this is my son.

-Please look favorably upon him. -(Inmyeon laughing)

Sir. This way.

Let's go.

-(breathes heavily) -HANSOL: It's a simple matter.

Just think about what you need to protect.

(suspenseful music continues)

(Giyong breathes shakily)

Just because there's no evidence

doesn't mean you haven't committed any crime.

That's not true.

No evidence, no crime.

That's what you did back then too.

(ominous music)

(music fades)

(dramatic music)

(sighs)

(crickets creaking)

(dramatic music continues)

-SEUNGHYUN: Dad? -(engine starts)

What? Secretary Shin?

(suspenseful music)

(door closes)

(suspenseful music rises)

(car engine starts)

(engine revving)

(music intesifies)

(engine stops)

NAMGI: Commissioner Wi can't get a hold of that!

Go get it back. Now!

My father is not supposed to have it? What does that mean?

(exhales sharply) You don't need to know. Just go get it.

I'll wait here.

Do you know my father?

Please tell me. Otherwise, I can't give it to you.

What's the relationship between my father and Jo Hansol?

Why are you suspecting my father?

Why?

Do you really want to know what kind of person...

your father is?

(suspenseful music)

AUGUST 2006 CLUB JOKER AT DAMOS HOTEL

NAMGI: Eleven years ago,

I got a tip-off from an informant about Damos Group's CEO Jo Hyuntae

that he was offering sexual favors to politicians

in order to evade taxes and start a duty-free business.

Okay.

(engine revving)

TRUSTWORTHY POLICE, SAFE COUNTRY

But I couldn't investigate the case alone.

So I asked help from your father, who was Captain of the DIU in Seoul at that time.

(suspenseful music)

(sighs)

So you want to work with me.

Yes.

I know you're after Jo Hansol.

NAMGI: Because your father was investigating

Jo Hansol's drug trafficking.

(girls screaming)

(laughing)

We can catch two birds with one stone.

GIYONG: This is the guy.

I want you to give them all the information

you've been collecting about the club.

Yes, sir.

(live music playing)

(crowd clamoring)

(clamoring continues)

(live music continues playing)

(shouting indistinctly in distance)

WAITER: Hey, junior!

Yes?

Leave that and go clean up room number three.

Yes, sir.

(crowd clamoring)

(upbeat music playing)

(live music playing faintly)

SECRET ROOM 1

STAFF ONLY

(suspenseful music)

DIRECTOR CHU MANSEOK

NAMGI: CEO Jo asked Director Chu to make a list of those

who were offered sexual favors just in case.

And we planted a KNPU student to get that list.

(clicking)

(suspenseful music continues)

COPYING

(thrilling music)

STAFF ONLY

(door closes)

(elevator dings)

(thrilling music continues)

(live music playing)

(crowd clamoring)

Yes.

You were right, sir.

There was a lot of information.

Yes. Gosh.

Okay. I'll bring it to you right now.

All right.

Excuse me.

Sorry.

(rain pattering)

(suspenseful music)

NAMGI: We got the mole.

POLICE

What about Jo Hansol?

Not yet...

Hyunsoo has to come out now. Or he'll be in serious danger.

It's now or never.

We need to get the evidence...

to arrest Jo Hansol too.

NAMGI: As your father had commanded,

he went in to get the evidence to arrest Jo Hansol

and got caught on his way back out.

(thrilling music)

(rain pattering)

(thunder rumbles)

CHANGUI IS ON YOUR SIDE

(grunting)

WE SHARE TRUST

WE DISCOVER CHALLENGES, PASSION, TRUST, AND VALUE

(grunts)

(somber music)

(Hyunsoo grunts)

CHANGUI IS ON YOUR SIDE

-(knife pierces flesh) -(Hyunsoo groans)

WE INVEST IN YOUR DREAMS

(grunting)

(groans)

WE INVEST IN YOUR DREAMS

(rain pattering)

(groans)

(grunts)

(somber music continues)

(breathing shakily)

GRANDMA

(phone line ringing)

-(pants) -(phone line ringing continues)

(phone line ringing)

-BOUNCER 1: Hey, did you find him? -BOUNCER 2: No.

-You guys go check over there. -And you, that way.

BOUNCER 2: Damn it. Where did he go?

(ominous music)

Huh?

(suspenseful music)

Hey, follow me.

Gosh.

Damn it.

(gasps, grunts)

(panting)

(groans)

(breathes heavily)

(foreboding music)

(groans, panting)

(vehicles honking)

-(car honking, whooshes) -(gasps)

(breathes heavily)

(emotional music)

-NAMGI: In case of an emergency, -(groans)

he was supposed to keep the evidence and go to an open place.

So the bouncers couldn't come near his body.

(breathing heavily)

-He was carrying out his duty... -(munches)

...until the moment he died.

-(thuds) -(honking)

WE WILL GROW WITH YOU. CHANGUI WILL MOVE TOWARDS A BRIGHT FUTURE

CREATE THE VALUE OF THE FUTURE

(rain pattering)

(gasps)

(breathes deeply)

-(cellphone ringing) -(breathing heavily)

GRANDMA

YOUNG TAK: Hyunsoo!

(all laughing)

-(cellphone ringing) -(rain pattering)

GRANDMA

(dramatic music)

(rain pattering)

Clear out.

-NAMGI: He ended up dying miserably. -(police siren wailing)

(dramatic music)

NAMGI: Do you know what Commissioner Wi,

no... what your father did with that list?

(suspenseful music)

(group clamoring)

(indistinct chattering)

Oh, you're here. (laughing)

You made a wise decision. Now don't think about it anymore.

Well, this is my son.

-HYUNTAE: Please look favorably upon him. -(Inmyeon chuckling)

INMYEON: Sir. This way.

-HYUNTAE: Let's go. -(Inmyeon chuckling)

Come on. Giyong.

DUKJIN: Come on. Let's go.

NAMGI (sighs): Is that it?

Do you think I came to you just to get that one superintendent?

The thing Hyunsoo left!

(breathes heavily)

Give it to me.

What the Police Agency released was everything.

You'll see.

-I'll disclose everything. -NAMGI: He traded a boy's life

to get the list,

and then sold it out for his success.

CHIEF INVESTIGATOR WI GIYONG

That's how trashy your father is.

No.

That can't be true.

That can't be my father.

If you're so sure of it, why don't you go ask him yourself?

Ask him what deal he had with Jo Hansol.

You'll see.

That laptop...

I'm sure it will end up in Jo Hansol's hands.

(suspenseful music)

(Hansol grunting, screaming)

(grunts)

(grunts)

(whoops, yelps)

(eerie music)

(Hansol breathing heavily)

(groans)

(Hansol sighs)

Who else watched it?

There are two more.

They're both KNPU students.

EUISEOK: Commissioner Wi will take care of his son.

What should we do with the rest?

Just leave them.

Without evidence, there's nothing they can do.

But still, they watched the video.

I'll keep an eye on them for the time being then.

(thuds)

(thuds)

(thuds)

-(grunts) -(thuds)

(cellphone buzzing)

INCOMING CALL ARI

(sighs)

Hey, Ari.

I wanted to surprise you.

I'll be staying at school for Police Academy until this weekend.

I asked the others for help since the Promotions Corps is short-handed.

You need to help too.

What do you want me to do?

Um...

For now...

(whimsical music)

This.

-What about this? -It's wild ginseng. I heard it's rare.

It's a present my dad got, but I brought it for you.

(sighs) If your father finds this out...

Mm-mm. He can't eat ginseng.

He gave it to me, so don't worry about it.

Then you should eat it. I can't take it.

Well... (smack lips)

I'm trying to be a supportive girlfriend.

(Ari chuckles)

You're practicing for the triathlon thing these days.

You've become so much thinner.

Eat this. It'll make you stronger.

(chuckles)

-Thanks. -Also... this.

It's a joint supplement. You said your grandmother had weak joints.

You seemed worried, so I got one.

You got one for my grandma too?

(chuckles)

-(phone buzzing) -Huh?

(gasps) The guys are here. Hide it.

They might take them like the cookies last time. Hurry.

JUNIOR POLICE ACADEMY PROMOTIONAL AND TEACHING MATERIALS

Am I the only one who thinks this is heavy?

It's heavy for me too.

Gosh. That Ari...

JUNIOR POLICE ACADEMY PROMOTIONAL AND TEACHING MATERIALS

-It's so heavy. My arms hurt so much. -Hi, Tak.

-Hey. -Hey, check the numbers.

If any are missing, we're in trouble.

We need to edit the school presentation slides too after this.

All right. Easy, girl.

It hasn't even been an hour since I came back from Mokpo.

Yeah, we're not even in the Promotions Corps.

Daeil and Hanna aren't here today. So you need to work twice as hard.

Tak came to help way before you guys.

By the way, when's Seunghyun coming?

ARI: I don't know. He wouldn't pick up.

That's strange. He never does that.

(dramatic music)

-(phone line ringing) -(sighs)

-(phone line ringing) -(sighs)

(phone buzzing)

INCOMING CALL EUNKANG

(phone buzzing continues)

(breathes deeply)

OPERATOR: The person you have reached is unavailable.

-Why won't he answer the phone? -(phone beeps)

(keypad clacking)

(light music playing)

(wind chimes tinkle)

-EMPLOYEE: Enjoy. -HANNA: Thank you.

HANNA: No, sit down. You just got the cast removed yesterday.

You should be careful for now.

DAEIL: Thanks.

So did your student like the essay-writing lecture?

Yes.

What a considerate kid.

I mean, you came all the way to Seoul for it.

How did he know his teacher wanted to come to Seoul?

I told him he had to take it to get into a good school.

HANNA: Also, his parents asked me to take him.

And I thought I could see you anyway.

Since I felt bad for not visiting you at the hospital.

So don't read between the lines.

Seeing you make all these excuses,

I guess it does mean something.

-Whatever. -Can't I read a little into it?

(light music playing)

(scoffs)

Huh?

-HANNA: What's that? -(gasps)

Oh, that...

(whimsical music)

This is...

-Is it someone's birthday? -What?

Well, I'm just curious. Is it someone's birthday?

Right. It is.

It's my birthday.

A friend of mine gave it to me.

Is it your birthday today?

I guess you didn't know.

I'm disappointed.

Sorry. You should have told me.

If you're sorry, have dinner with me.

I found some good restaurants around here.

I booked a bus departing at six.

I see.

All right. I guess we can do dinner another time.

Then how about...

we do something that we'll remember for the rest of our lives?

(whimsical music continues)

(camera shutter clicks)

(camera shutter clicks)

(camera shutter clicks)

(camera shutter clicks)

Come on. Let's take one together.

I don't like taking photos.

They say photos are the best souvenirs.

-No, I'm good. -But it's my birthday.

(upbeat music)

But do I really have to be holding this?

It's my birthday.

We look like we're dating because I'm holding these.

It's my birthday.

Hurry it up then.

Here we go.

(clears throat)

One.

Two.

Three.

(camera shutter clicks)

(music fades)

What's wrong with this thing?

ARI: Try harder.

BUMJU: Come on.

That's not how you do it.

Watch me.

(clears throat)

Look. Do it in one motion.

(snaps)

-(Ari, Tak exclaims) -(chuckles)

(clears throat) Let me try again.

-(baton snaps) -(Bumju grunts)

Huh!

(object clatters)

ARI: Oh, no.

-JUYOUNG: Hey. -ARI: Are you all right?

-My goodness. -You...

Hold on.

Ju...

(stammering)

-Hey. -What do we do?

-Hey. -Tak, please.

You should have been careful.

Maybe we should call an ambulance.

I can walk you to the train station.

I have to go pick up my student. since the lecture's over.

I'll...

call you.

Okay.

But don't video call me.

Okay.

(uplifting music)

DAEIL: You take this.

What? Why would you give me your birthday present?

Well, I'm a man.

It's kind of embarrassing to take this home.

DAEIL: Come on.

I'll go then.

Hey.

HANNA: What's wrong with him?

-(gasps) -(message tone)

YOO DAEIL

DAEIL: I bought the flowers for you.

Today being my birthday...

was a lie.

What?

(chuckles)

He picked a nice one.

(light music)

EUNKANG: I'm worried you aren't answering.

-Is everything okay? -(sighs)

(line trilling)

Oh, you had an appointment.

I thought you were sick or something.

Did you give the laptop to your father?

SEUNGHYUN: Yes.

EUNGKANG: What did he say? Was he surprised?

Yes.

Will he work on the case himself?

I guess he will.

I was so nervous I couldn't sleep last night.

EUNKANG: If it is what we think it is...

Eunkang.

SEUNGHYUN: I have an appointment now.

Can we talk about the details later?

What? Okay, sure.

Let's talk later.

Bye.

RESEARCH CENTER FOR FORENSIC SCIENCE

EAST GYEONGGI PROVINCIAL POLICE AGENCY

Hey. Is everything all right?

-DETECTIVE: Yes, sir. -Good. Take it easy.

(chuckles)

Goodness. You're working so hard.

-GARDINER: Hello, sir. -(laughing)

Right. Your son's wedding is next Saturday at three, right?

Yes.

As an officiant, I'll make sure to prepare a great speech.

My son and in-laws are so excited about having you as the officiant.

Thank you so much for treating us like family.

I really appreciate your kindness.

Please. What are you saying?

We police are all family.

Whenever I'm free, anytime.

(both laughing)

-Thank you, sir. -No problem.

-GIYONG: Then I'll see you then. -GARDENER: Sure.

Hey, Seunghyun. You came.

-When did you arrive? -Just now.

GIYONG: It'll be my sixth time officiating at a wedding.

At first, I got so nervous

that I confused the bride's name with the groom's name.

But now, I can even improvise jokes.

(laughing)

You haven't seen me officiating at a wedding, have you?

(chuckles)

-(slurps) -Hmm?

Hey. Don't drink so fast.

GIYONG: Then you'll get drunk soon.

And when you're drunk, you make mistakes...

All right. You can get drunk in front of me.

But...

not anywhere else.

-GIYONG: Cops shouldn't get drunk. -(pours liquid)

When I was in the third grade,

the two of us visited Grandpa's grave. And on our way back,

we caught a hit-and-run driver

after chasing him on the highway for 30 minutes.

Do you remember?

(sighs) Did we?

You asked me to bring the handcuffs from the car,

so I brought them to you.

I even helped you handcuff him.

Oh, right. I remember it now. (laughing)

You were fascinated with the handcuffs

-because you haven't seen them before. -Right.

In fact, that's when I decided...

to become a cop when I grew up.

Because you...

looked so cool then.

(chuckles) Gosh.

You're flattering me. (chuckles)

(slurps)

(cup clinks)

Did you...

(pours liquid)

...hand over the laptop

to the investigation unit?

(ominous music)

(breathes deeply)

Of course.

I told them to investigate it thoroughly.

-You don't have to worry about it anymore. -I'm worried.

I haven't told you about it, but I met CEO Jo Hansol once.

I heard you knew each other.

(scoffs)

Do you think I can't keep my work and personal life separate?

(sighs) Don't worry.

At my age and in my position,

I have rich friends and thug friends.

it's normal to know all kinds of people.

But, you two have a special relationship...

(suspenseful tense music)

...is what I heard

from Detective Kang Namgi.

You met Detective Kang?

Yes.

He said you gave away the evidence before,

and you'd do the same this time.

SEUNGHYUN: I don't believe everything he said.

But I still wanted to check.

-What did you want to check? -SEUNGHYUN: The laptop.

Did you really hand it over to the investigation unit?

I said I did.

Then why did you meet Mr. Jo last night?

It's not like you

to secretly meet a suspect

at such a late hour.

Because you never do anything that can be misleading.

Did you...

give the laptop to Mr. Jo?

(tense music)

I said I didn't.

(slurps)

(slurps)

(cup clinks)

I hope I'm wrong.

(tense music continues)

(door opens)

STUDENT CENTER

(foreboding music)

-(phone line ringing) -(sighs)

HAPPY PUB

INCOMING CALL EUNKANG

(thuds)

(cellphone clatters)

MAN 1: Hey.

Where's my apology?

You're blocking my way, kiddo.

Say sorry right now. Hey.

(scoffs) This jerk.

Hey.

(passerby clamoring)

Come here.

You little bastard. You've got no respect.

You're supposed to say sorry.

Hey, stop.

Get off of me! This kid has lost his mind.

Hey. Come here, you bastard.

-MAN 1: You bastard. -MAN 2: Hey, stop.

MAN 1: This kid's an absolute lunatic. Hey!

INCOMING CALL

Hello?

Yes, that's me.

Where?

POLICE

(sighs)

Professor Cha Ugon?

-Yes. -Hello.

He's over there.

(indistinct chattering)

(sighs)

(whirring)

Great job. You must've called me

because you wanted to be punished, right?

You wanted the school to know, is that it?

I'm sorry.

I'll gladly accept any punishment.

If you wanted to be beaten so much, you should've asked me.

Do you want to go see a doctor?

No.

So, do you feel better now?

(somber music)

(breathes deeply) Detective Kang called me.

Hey. I told you to leave my students alone.

If you have problems with Commissioner Wi, talk to him!

Don't bother the kids!

NAMGI: He needs to know too.

Call me a coward if you want.

I don't care.

(scoffs) If you don't care, why did you call me?

(sighs)

I don't know.

I'm not sure why I called you.

I shouldn't have to worry about Commissioner Wi's son.

(sighs)

NAMGI: Anyway, you're his teacher,

so call him.

I don't want to lose anyone...

anymore.

UGON: Apparently, he felt bad after you left like that.

Do you know Detective Kang?

We were on the same team once. Along with your father.

(crickets creaking)

(inhales)

You can sleep here tonight.

Thanks, Professor.

Don't stay here for long, though.

What if someone finds out that I hid a runaway student?

I'm scared of Commissioner Wi.

(breathes deeply)

Also,

don't blame your father too much.

He must have his reasons.

If he hadn't told you what they were,

there must be reasons for that too.

UGON: It could have been for your sake.

So you don't have to live your life feeling guilty.

(somber music)

(breathes deeply)

There's ointment somewhere in that drawer.

Put some on before sleeping.

(door closes)

(somber music continues)

(sighs)

(music fades)

ARI: All right. Let's all stand in line and go to the Forensic Science Lab.

-STUDENTS: Yes, ma'am. -ARI: All right.

BUMJU: Please come this way.

(birds chirping)

Hey, Eunkang. Is Seunghyun not answering you either?

No. His phone's still off.

-(sighs) -(phone beeps)

-Maybe we should call his home. -His home?

Guys. Come on. We're about to start.

-EUNKANG: Okay. Coming. -TAK: All right.

While DNA analysis is relatively a new investigation method,

fingerprint analysis is the most basic forensic analysis method

been in use for over a century.

Today, we're going to detect fingerprints

using this carbon-based black powder called fingerprint powder.

-Can it be any fingerprint? -UGON: Of course.

You can dust for any fingerprint you can find in this room.

UGON: You may think there will be many fingerprints here,

but it won't be that easy to find clear fingerprints.

Let's begin.

(indistinct chattering)

(thrilling music)

Dust wherever you think fingerprints could be.

Do you see the fingerprints?

(students exclaiming)

Stick it on and off, then the fingerprints are caught here.

-Stick the tape here and see how it goes. -Okay.

HISTORY OF CRIME SCENE INVESTIGATION IN KOREA

Could you shine here?

-It's coming up. -I see it.

-This is so cool. -It really works.

We got it.

All right. Did you all get fingerprints?

-STUDENTS: Yes. -Let's check Group One first.

We detected a fingerprint on this baton.

Mm-hm.

-(grunts) -(Bumju groans)

(Ugon exclaims)

We found a fingerprint on this table.

-BUMJU: Hey, wait. -ARI: Try patting his back.

ARI: Oh, no. Maybe we should call an ambulance.

(Ugon laughs) Well done.

There aren't as many fingerprints as you thought, right?

FEMALE STUDENT 1: No.

We found a fingerprint on this door.

It must have been hard because so many people touch the doorknob.

It wasn't on the doorknob but the door.

UGON: Oh...

It's very clear.

There's another one.

UGON: Hmm?

I wonder why there are fingerprints like that.

We also thought it was weird, so we tried to guess what happened.

And we concluded that

there had been some displays of affection here.

(students clamoring)

UGON: Quiet down.

(students clamoring continues)

And why is that?

As you can see, there's one palm on top

and two palms on bottom.

We have clear fingerprints of two people here.

And considering where the palms are located...

FINGERPRINTS

FEMALE STUDENT 1: Presumably, the man's height is over 180cm

and the woman's between 160 and 165cm.

If we check the footprints on the floor,

we'll be able to confirm what their positions were like.

(chuckling) May I?

(quirky music)

-MALE STUDENT 1: She was right. -There really are footprints.

-MALES STUDENT 2: My gosh. -FEMALES STUDENT 2: What?

Enough.

UGON: That was a great theory.

You're very creative.

I think I know whose they are. Can I say who?

No. Let's wrap it up here.

Finding the couple isn't our lesson today.

UGON: All right. Good job, everyone. That's it for today.

And you.

You should apply to our school later.

-Okay! -UGON: Good job, everyone.

Thank you.

STUDENTS: Thank you.

-Where is it? -Is it real?

Lemme see.

JUYOUNG: Who was it?

What?

(exhales sharply)

It's one of us.

Who would do such a...

(sighs)

(smack lips) It's too embarrassing to even say it.

Who did such a nasty thing in this holy place?

Gosh. Hey. Do you actually believe that kid?

I don't necessarily believe her, but I believe in science.

What is the skin secretion that mainly leaves fingerprints?

-Moisture. -Exactly. Moisture.

Moisture, inorganic compounds like sodium chloride, potassium, and calcium,

organic compounds like amino acid and urea,

and sebum produced in the sebaceous glands.

(Juyoung clears throat) Anyway,

that we had such clear fingerprints

means those fingerprints didn't dry up yet.

Which means, they were still moist.

Isn't that right?

Look. This room has been locked for over a month during the vacation,

and there were wet fingerprints here?

This means that they belonged to one of the people

who visited here within the past two days.

Let me ask you once again. Who was it?

(comical music)

I'm not sure.

I wonder who it was.

(Juyoung breathes deeply)

I might have seen someone...

(comical music rises)

It was me.

I'm the guy who touched the door.

TAK: Are you happy now?

(clears throat) What? You?

Then who was the girl...

(groans)

My gosh. My blood pressure...

Wow. How could you betray us like this?

Wait. Was it really you guys?

-Sorry. -Hey, Shin Ari.

You said you didn't like country boys.

JUYOUNG: You said Tak had broad shoulders but he looked so dumb...

Gosh. What are you talking about?

-When did I say that? -Hey!

Bring Eunkang here. She heard it all.

SOOKJA: Seunghyun is at school.

He went to school, saying he has to help with the Police Academy or something.

Oh.

He's probably busy and not picking up.

Is something the matter?

No, everything is all right.

Yes.

Bye.

Okay.

-(phone beeps) -(sighs)

Where on earth did he go? Why doesn't he pick up the phone?

EUNKANG: Professor.

Oh, hey.

Well...

When you can't reach someone for more than one day,

you can report them missing, right?

If the person is an adult,

you should check if they went missing on their own accord.

If they're over 18, they'll be reported as a runaway.

Why? Who's out of contact?

Well...

Actually, I can't reach Seunghyun.

(breathes)

(somber music)

(knocks on door)

(suspenseful music)

CHANGUI INVESTMENT

(door opens)

(suspenseful tense music)

Please have a seat.

(sighs)

I was really surprised to hear that you came.

So...

what brings you here?

I'll ask you outright.

You got the laptop from my father, right?

(scoffs) Yes. So?

You can delete the video, but my friends and I saw it.

You won't be able to get away.

My. I'm so scared.

(laughing)

You see, Seunghyun.

Don't think of me as your enemy.

HANSOL: We can be friends

or anything we want to be.

(Hansol breathes deeply)

(suspenseful music)

I like you, Seunghyun.

Can't we... be on the same team?

I can't be on the same team as a criminal.

SEUNGHYUN: If you have committed a crime,

I will make you pay for it.

I came here to say that.

(snickers)

How adorable.

-Have you looked into it? -Yes, sir.

BROTHER, KIM HYUNSOO, DIED IN A CAR ACCIDENT

This looks interesting.

(ominous music)

(door chimes open)

(cellphone buzzing)

(suspenseful music)

EUISEOK: If you want to know about Kim Hyunsoo's death,

come to Alto at 8 o'clock.

(sighs)

(suspenseful music)

SEOUL METROPOLITAN POLICE AGENCY

(suspenseful music continues)

(suspenseful music continues)

ONCE A TEAM, ALWAYS A TEAM! AT CAPTAIN WI GIYONG'S HOUSE

SEUNGHYUN: I didn't know your brother was a KNPU student too.

Which class was he in?

Kim Hyunsoo of the 33rd.

CLASS 33, KIM HYUNSOO

(suspenseful music)

(door opens)

You're back.

SEUNGHYUN: Professor.

Who's Kim Hyunsoo?

Is he Tak's brother?

CLUB ALTO

(live music playing faintly)

Have a seat.

(muffled upbeat music plays)

(door closes)

You know who I am, right?

-Yes. -I just learned

that you were Mr. Kim Hyunsoo's brother.

-If I had known, we... -How do you know my brother?

How could I not?

He used to work here in my club.

You didn't know?

You know, he was like that thing in the movie.

What's it called?

An undercover cop!

That's what he was.

(thrilling music)

My brother?

(exclaiming)

You think...

your brother died in a car accident, don't you?

If not,

what was it?

(thrilling music continues)

Tak doesn't know...

that his brother died in the line of duty.

Does my father know... (sniffles)

...that Kim Hyunsoo is Tak's brother?

(inhales)

Maybe.

HANSOL: But...

how do you think we knew

Kim Hyunsoo was an undercover cop?

(eerie music)

(women clamoring, moaning)

(laughing)

HANSOL: Here we go.

Boom, boom.

(breathing heavily, chuckling)

-(Hansol groaning) -(women moaning)

(Hansol, woman laughing)

(suspenseful music)

-(Hansol panting) -(women laughing)

(thrilling music)

HANSOL: Hey.

-Yes, sir. -Ice.

Ice.

-Yes, sir. -HANSOL: Ice.

(laughter)

SECRET ROOM 4

(tense music)

(claps)

Who could it be?

(foreboding music)

Who could have told me that?

(imitating drum roll sound)

(rain pattering)

GIYONG: I planted a mole.

His name is Kim Hyunsoo,

a KNPU student.

MANSEOK: Thank you for telling us.

We'll take care of the rat.

Okay.

(dramatic music)

Where's Kim Hyunsoo?

HANSOL: It was a cop.

A cop told me about it.

SEUNGHYUN: Are you saying my father...

just gave away what Tak's brother got...

risking his life?

(tense music)

(exhales sharply)

HANSOL: It was...

our friend.

(ominous music)

(chuckles)

(laughing)

(laughing continues)

(upbeat music)

(closing theme music)