Original subtitles

"There is no coincidence with fate."

"Humans make

their own destiny

before they face it."

THOMAS WILSON

Spacetime is like a pile of photos that record

the changes made in a space through the passage of time.

That is why speed

can be found by dividing the distance by time.

In order for the speed of light to be constant where it travels,

time has to slow down, okay?

Minkowski,

at his very famous lecture back in 1908…

This…

It's a diagram that was made 100 years ago.

It was made when the Internet and mobile phones hadn't been invented.

But you guys can't even understand

what was made 100 years ago.

You're learning physics in order to become scientists.

Aren't you embarrassed?

Do you want people living 100 years later to study theories from 200 years ago?

Guys. Do you really not get it?

How can you major in physics when you don't even understand this?

Are you all idiots?

What is it?

What do you want?

What's your problem?

Pervert!

How dare you come in here?

Hey, lock the back doors.

Call the police!

Gosh.

You got the wrong person.

How can you commit sexual harassment in a lecture?

Hello?

Is this the police?

Take it! Take a picture!

Are you really a detective? This is not fake?

It's not.

Then did you mistake me for someone else?

I didn't mistake you.

Then why did you do that?

Do you happen to know who I am

and what

my name is?

Park Jin-gyeom.

How did you know?

I guess the police recruit just anybody. Don't they have exams?

How old are you?

Why are you asking that?

Are you over 50?

Are you serious right now?

Were you born in 1968?

Can't you tell?

Did you give birth to a son?

Seriously?

You must know this since you're a detective.

Even if I slap you right now, I'm innocent.

Get out unless you want to get slapped.

She's a genius who graduated from high school at age 15

and got into Hankuk University at the top of her class.

She became a doctor at the age of 23, and she worked as a researcher

at an advanced science technology lab.

She even published books.

She fought with her boss there last year and quit.

What was she researching?

I was trying to figure that out,

but no one knows

what she was researching.

Even her parents

don't know what research she was doing.

What about her family?

Father, mother, and a younger sister. Her parents run a Chinese restaurant.

But that Chinese restaurant

is in the alley just across the street from us.

Here.

Enjoy.

Thank you.

Should we have dinner?

It's a misunderstanding.

I only went there to sing.

I touched nothing but the microphone.

Gosh.

Jeez.

Gosh. Do you want more pickled radish?

I'm okay.

Why are you back?

Please, Mom, just once. I have to send in the deposit by tomorrow.

I can't.

I have no money to spare.

Come on, Mom!

We should just help her out.

No. We don't have money.

Sweetie, we have no money.

Dad, you just stay quiet.

Mom, please help me live on my own.

Why are you dying to live alone?

I really can't live with Tae-i.

She's dying to kill me.

If I'm found dead, my sister is responsible.

You wench, how could you talk like that?

What's with your outfit?

If I was your boss, I'd fire you.

I wear the uniform at the bank.

Also, our branch can't run without me.

If you can't live with your sister, just come back home.

Why do you always discriminate?

You do everything she asks, but never do anything for me.

What have you done for me? You did nothing for me too.

You spent all your money traveling as you earned it.

-What kind of mom are you? -What kind of daughter are you?

Gosh.

Why didn't you finish?

I'm done.

Thank you.

Please come again.

He's hot. Is he a regular?

What?

What would the police investigate my sister for?

Did she cause a problem?

Or is she in danger?

It's not a big problem, so you don't have to worry.

I have a few questions about her.

Didn't something special happen to her in 2010?

In 2010?

She was 22.

She was in graduate school. Nothing special happened.

Didn't she suddenly start acting like someone else?

No.

She was consistently so annoying.

What do you mean?

You said you met her.

You can see from a single meeting how annoying she is.

From what I know,

I believe she has a great personality.

-Am I wrong? -You're wrong.

Isn't she kind and caring?

Isn't she someone who likes children as well?

My sister?

Tae-yeon, beer!

Don't you think you're being too much? I'm not your maid.

You're not the boss of me!

So?

That's why I'm going to get groceries.

Is there anything you want to eat?

Oh, right.

Some detective visited me.

Who is he? He's quite hot.

Do you think that's the right question to ask?

It was you who met the detective.

Why are you asking me who that detective is?

I can't believe someone like you is a banker.

It's more mysterious than the secrets of the universe.

Nambu Station, Park Jin-gyeom. Ring any bells?

Why did that pervert go to you?

Is he a pervert?

How do you know that?

Right.

How do I know that?

An unknown quantity…

Is the Kaprekar number the answer?

Hold on.

With 9,801, it's 98 plus 01.

Anyway, that detective

knew you really well.

He said things about you, and he was correct. Except for your personality.

What?

He knows you don't eat ramyeon, drink a lot of water when you eat,

and that you like jjamppong and spicy cold noodles.

How?

PARK SEON-YEONG

Mom.

Can you tell me…

what happened?

The time card wasn't handed in to the police as evidence.

Luckily, it looks like Park Jin-gyeom still has it.

-Did you do some research about him? -Yes, sir.

According to what Ms. Oh researched,

we don't know who his father is, and his mother passed away in 2010.

After that, he went to Police University.

He's on Seoul Nambu Police Station's Investigation Team Two.

What's interesting is that he was diagnosed with alexithymia at six.

"Alexithymia"? Do you mean he lacks emotions?

That's right.

Who are these people?

That's his boss and the boss's wife.

Jin-gyeom lived with this couple from when he was 20 until last year.

Are they relatives?

No. His mother was an orphan, so he had no relatives.

Then why did they live together?

It was a long time ago, so we're still investigating.

That's good enough.

Let's retrieve the time card tonight.

He's a detective. Will we be able to retrieve it?

It doesn't matter if he's a detective.

So where's Park Jin-gyeom right now?

PHYSICS OF GENIUSES

PHYSICIST YOON TAE-I

Mr. Park Jin-gyeom.

Please return the card.

What card?

We came here knowing you have the card.

This one?

Yes, that. You're not supposed to have it.

Try and take it from me.

Who are you people?

Get the time card first.

Wait in the car.

So it's called a time card.

I don't think I should let you live.

I think it's the same gun

that killed your mother.

Sir.

The police are coming because of the gunshots.

We need to leave now.

Don't try to look for us.

You won't be so lucky next time.

Hello.

Prof. Yoon.

Welcome.

How was your weekend?

Why do you ask?

Have a seat. Please.

Okay.

I'm just wondering if everything's okay.

Will you fix it if I have a problem?

No, it's not that.

Well, I have a favor to ask you.

I heard one of the students in your joint research quit.

So?

You see, the president has a nephew.

And it turns out he is in a similar major.

You see what I'm getting at, right?

Right?

No, I have no idea.

It sounds like words, but what do you mean?

What I mean is,

can you just

add the name of the president's nephew to your dissertation?

I see.

Is that what you meant?

Yes.

Please do it for me.

-No. -What?

Why not?

Do you know what we find more than dust in the research lab when we vacuum it?

Hair.

My students' hair fell out for three years as they did the research.

Don't disappoint them.

You have so little hair too.

What?

Hey.

Right.

Come on.

-Ma'am. -Yes?

Have this.

You shouldn't have.

It's from the department chair.

Thank you.

Do you like me or something? Are you a stalker?

It's not like that.

Then why are you bothering my family by chasing them around?

I'm sorry if I offended you.

I have a favor to ask you.

This is just a card.

It's no ordinary card.

It has a unique shape, but it's just an ordinary card.

Can you do me a favor?

Can you look into what this card is for?

There's someone I must catch.

Do you see that?

I have to read those papers by the weekend.

Do you know what the bigger problem is?

They're in different languages.

Now, do you think I have the time to analyze a card like this?

It's not like you're paying me.

Do you believe in time travel?

Do you think this development in our conversation makes sense?

Don't you think it's so random?

When I grabbed this card,

things around me started to float.

Maybe you were drunk.

I'm telling you the truth.

Not too long ago,

I saw a drone without any propellers.

You can't believe it, right?

I feel just like that right now.

What?

Were you

chasing the drone that day?

I saw the drone that day too.

I also saw you.

Be careful for a while.

Park Jin-gyeom must remember your faces.

I don't care about mere detectives.

He may be from 30 years ago, but he's still a detective.

We don't want to cause problems.

Then you should've never built Alice here to begin with.

You built Alice here. Of course it causes problems.

That's why you called me here.

To solve

those problems.

I know what you want, and we must be more aggressive to make it happen.

We can only protect what's important to us if we're stronger.

So did you protect yours?

Were you able…

to protect what you cherish?

There are three ways to generate the lifting force to lift your own weight.

Rotation, rocket, and antigravity.

FORCE IN OPPOSITION TO GRAVITY

But the drone I saw that day

didn't have any rotational parts or rocket elements.

That's why I followed it.

Do you believe developing such a drone with our current technology is impossible?

To be honest, it's not something we can easily judge.

You see, the development of humankind is possible thanks to very few geniuses.

Those people invent things we can never imagine.

Even now, I bet they're making

something amazing in secret.

Then,

do you think it's possible

to invent a time machine?

Of course.

Countless geniuses of the past were able to develop science to its current state.

The geniuses of the future should at least make a time machine.

By the way,

why do you keep asking me about time travel?

I believe this card is related to time travelers.

There are no time travelers.

What kind of detective is so imaginative?

But just now…

I said what I said as a professor of physics.

To be honest, no one knows if time travel is possible.

Please analyze it just once.

Where did you find it?

I can't tell you that yet.

If you don't, I won't do this for you.

Ask for my help when you can tell me.

It belonged to my mother.

I see. So?

You think she had something to do with time travel?

I'm not sure.

But a person who has the same card is assumed to be a time traveler.

Why do you assume that person is a time traveler?

I'm asking you to analyze the card to find that evidence.

Are you joking?

I think it'll be a waste of time, but okay.

I'll try it.

Thank you.

By the way, you don't drink?

Is it because of your car? Just call a driver.

I'm okay. You can drink alone.

Suit yourself.

It's a habit I picked up because of my lab seniors.

It's more fun to shake it.

Stop staring. I'm embarrassed.

Please pour me a shot too.

Now you're craving it.

Here. Cheers.

Gosh, it's good.

Are you a heavyweight?

No. It's my first time.

Why?

Have you been sick until now?

No.

Why are you drinking today, then?

Because

I wanted to drink one day.

Again?

Have another.

You drink well.

It's not bad.

I'm feeling great too.

Are you sure you're feeling great?

Yes.

What?

I wasn't sure, but it's really you.

Gosh. You turned me down whenever I asked you to drink with me.

Who is he?

Why do you care who he is?

This is why I like you.

I get tense whenever I'm with you.

Are you crazy?

Hey.

How dare you talk casually to her?

She's over 50!

What?

Are you kidding?

He's drunk, so just go on your way.

-Go. -Okay.

Hey. At least tell me the reason.

Why do you keep saying I'm over 50? Do you have vision problems?

If my mother were still alive,

she'd be over 50 now.

So what does your mother have to do with me?

Do you

really not recognize me?

I do! You're Detective Park Jin-gyeom from Seoul Nambu Police Station.

Are you a time traveler?

Jeez.

I'm quite impatient, so please stop.

Can you explain why you are

in front of me?

That's what I want to know.

I don't know why I'm still in front of you.

I'm leaving. Get home safely.

What are you doing?

Jeez.

MYSTERIOUS KIDNAPPING CASE

MY PRECIOUS DAUGHTER DISAPPEARED. THREE DAYS LATER…

JIN-GYEOM

Hello?

Isn't this Park Jin-gyeom's phone?

It is.

Are you someone close to him?

I'm his friend. Who are you?

You don't have to know. I'm at the food street in Haengwoon-dong.

Can you come and take Jin-gyeom?

He passed out after drinking.

Jin-gyeom is drunk?

Yes. The restaurant's name--

Who are you?

What did you do to Jin-gyeom?

Why are you yelling? Do you know me?

What did you do to him? Jin-gyeom would never drink.

I didn't force him to drink.

I'll be right there, so don't go anywhere. Understand?

Darn it.

Jin-gyeom.

Jin-gyeom.

Did you really drink?

Darn it.

I didn't go anywhere. Are you happy?

Can I go now?

Wait.

May I know your name?

Darn it.

What was that?

It's bothering me.

I never thought I'd be cooking you hangover soup.

How did I get home?

Gosh.

You are unbelievable. Just unbelievable.

Jeez.

Eat.

Thank you.

What's wrong? Do you not feel well?

It's bland.

Do you want to chug it?

She looks a lot like her.

I get why you drank with her. I get it.

It might be more than just the resemblance.

I can't explain it.

I know that it doesn't make sense.

So it frustrates me more.

What are you thinking?

Ms. Park Seon-yeong's son, Park Jin-gyeom.

Please come to your senses.

Prof. Yoon Tae-i has nothing to do with your mom.

They just look a little alike.

It's possible with Asians since we have rather flat features.

Well, let's say she's her doppelganger.

DOPPELGANGER: SOMEONE WHO LOOKS LIKE SOMEONE ELSE

She's still not your mom.

If I were to write this down, it'd be written in capital letters.

That's how serious I am.

I mean, did you become interested in her because she looks like your mom?

Don't be weird.

You are the one who's being weird.

I'm sorry for saying this, but that woman is a physics professor.

But your mom was an ordinary woman.

Besides, she's rude and annoying.

Watch your mouth.

What are you doing right now?

-You should go. -Park Jin-gyeom.

Go.

Do you know how to take a good photo of someone?

You need to love that person.

That's because you try harder to take better photos

and already know their best features.

I'm sure you'd take a really bad photo of me.

I hate you.

I wasn't talking to you. I was talking to myself.

I don't think so.

How can you speak so clearly to yourself?

Jeez.

I guess the police in Korea have plenty of free time.

How is Korea so safe?

Did you get home alright last night?

It would've been much better if it weren't for you, Detective.

Your girlfriend is quite fiery. I thought she was going to beat me up.

She's my friend who cares a lot about me.

Please don't take her the wrong way.

I came to ask if you found out anything about the card.

I told you I am busy this week. I will call you, so wait for my call.

When you answer a question like this, substitute a variable to the equation.

R1, T1, M1 are the initial values,

and R2, T2, M2 are variation values. Right?

What is it?

Is it strange that I'm solving this?

When I was in school, I'm sure I was even smarter than you.

Come on, my darling.

No, thanks. You should go alone.

All right, then. I'll be quick.

Why would a policeman eat at a school cafeteria?

If you don't like being a policeman, find another job.

I heard the food here is good.

Then why didn't you eat it?

I don't have an appetite.

Gosh.

You bother me in every possible way. I just need to analyze the card, right?

-One more thing-- -What now?

Can I see the back of your neck?

I'm about to explode, so get out of my sight, okay?

-Hi. -Hello, sir.

Hello, sir.

-Where's Jin-gyeom? -I haven't seen him today.

What has he been up to?

He's investigating some professor.

What professor?

A physics professor named Yoon Tae-i.

Yoon Tae-i?

It looks like a regular card.

Hey, can I use your lab?

You're drinking too much too early.

Everything okay with you?

That's what I want to ask you. Is everything all right?

I…

Perhaps I shouldn't have let you move out.

I felt at ease when you were staying at mine.

You kicked me out.

I didn't want to move out.

I didn't want you to leave either.

But Do-yeon kept pestering me to make you move out.

So I made you move out as she wanted, and she still hasn't made a move.

Idiot.

What do you mean?

You're worse than her.

Pour me a glass.

If there is

any problem, you should talk to me first, okay?

I've always done that.

Continue to do so, boy.

I will.

Right.

About Eun-su's kidnapping case.

Don't dig deeper into it. Eun-su's parents want the case closed.

All right.

When did it start?

It started while I was away on a business trip.

Is it atopic eczema?

It's not atopic eczema. It looks more like a rash or dermatitis.

It didn't spread to the whole body, so she'll get better with medication.

You are scared of getting a shot, aren't you?

Do I need to get it?

I'm not sure. I will have to think about it.

You got better, my darling Eun-su.

You are lovely.

Why hasn't Client 1011 departed yet?

Client 1011? Are you talking about Eun-su's mom?

Shouldn't she have left last week?

She isn't feeling well so has delayed her departure.

You know she's lying. She doesn't want to leave her daughter.

You've dealt with many clients like her. How can you be swayed every time?

She wants to stay with her dead daughter a bit longer.

-Is it so hard to understand? -I can understand it.

I understand it, but…

you need to know when to say no.

I guess it's easy for you to do that.

It's hard for me.

Uncontrolled emotions are the most dangerous.

I will take care of it.

HONG EUN-SU

Eun-su.

Eun-su, Mom's here.

Why are you so cold, my dear?

I'm Yoo Min-hyuk, the team manager.

You are ready for departure. Please follow me.

But I already talked to Ms. Oh about this.

I want to delay--

I'm sorry, but it's not possible to delay it any longer.

Take her to the departure terminal.

We will soon arrive at the terminal.

Please get ready.

Ma'am?

I'm sorry.

Pardon?

You're not hurt, are you?

You're safe now.

Okay.

I will take you to your destination.

Okay.

Please.

Thank you.

I'll go catch him right away.

First, find out where they are. And just keep an eye on them for now.

She hired a broker

to stay illegally.

We must arrest them now.

That's why I want you to only watch them.

"A mother who went through the door of time

to stop her daughter's death

tries to change the past

and shake the future."

-Did you get your passport? -Of course I did.

When will you be back?

I'm not sure. Maybe the day after tomorrow.

I will find out when I get there.

-I'll message you when I arrive. -Have a safe trip.

Have a safe trip. Bye.

I must be mistaken.

My daughter.

Isn't she lovely?

She sleeps…

like an angel.

But you…

You failed to protect my daughter.

Get lost. This is my place.

Move!

More. Now, stop.

That's it.

Hey. Stop.

Jin-gyeom.

Gosh.

What should we say?

You do it. I can't.

Hey, why can't you do it?

What the…

May I help you?

Mom.

Mom.

Who are they, Mom?

They are the police.

How the hell is…

What…

FINGERPRINT IDENTIFICATION

It's done.

Is there anything else you need?

No. Thank you for your cooperation.

-Eun-su. -Mom.

Are you done?

You must be hungry. Should we eat something on the way home?

What should we eat?

-Barbecue. -Barbecue?

Should we have a barbecue?

I compared their fingerprints. And they match perfectly.

What was the cause of death?

She was strangled then stabbed in the neck with a knife.

But around the stab wound, there are several cuts.

The killer hesitated several times before stabbing her.

Are there any clues that could lead to the murder scene?

None.

She got that wound from fighting the killer.

Usually, the killer's DNA is found under the victim's fingernails.

But, strangely, we only found

the victim's DNA this time.

Eun-su.

Eun-su?

Let's eat, Eun-su.

You collected my fingerprints and blood sample yesterday.

I don't know what happened,

but it's got nothing to do with me.

I have to wake my daughter now.

If you have no business here,

could you leave now?

We still haven't caught the culprit of Eun-su's kidnapping.

It doesn't matter now. Eun-su is safe.

But it matters to us.

Let me ask you a few questions.

During the investigation, you said the only person who'd known

about both your business trip and Eun-su's field trip

was your husband. Right?

Two.

My husband

and the housekeeper at my house.

Gosh.

I don't remember it well.

I was too shocked then.

I'm asking because I wondered if the housekeeper didn't know about it.

Now that I think about it, she must've known.

Is she not working today?

She quit when I took a leave of absence from my job.

I heard Eun-su used to like her.

She must've been sad.

No.

She's still very new, so Eun-su was scared of her.

Yes.

Eun-su and I were

both very sad since she'd been with us for a long time.

On what grounds would we watch Eun-su's mom 24/7?

She's clearly the other Eun-su's mom.

What on earth are you talking about?

Do you have any leads?

Not yet.

But if we investigate her, we will find something.

Then I will meet her first.

Let's decide after that.

Just listen to me, will you?

Fine.

Eun-su?

Should we go on a trip?

Get up, Eun-su.

Get up, Eun-su. Eun-su--

Eun-su.

Eun-su?

No… Eun-su.

Eun-su?

What do I do? My poor Eun-su.

What should I do?

Can I come in for a while?

What is it this time?

I have a few questions to ask.

My child is sick. Can you come back another time?

It won't take long.

-Are you going somewhere? -It's none of your business.

If you have a question, ask me fast.

I don't have any questions for you. I came to ask Eun-su something.

Where's Eun-su?

At kindergarten.

Didn't you say she was sick?

Eun-su.

I'm sorry…

I'm sorry…

Jin-gyeom.

How's Mr. Ko?

Jin-gyeom.

He is…

Packing.

Gauze.

Hello?

I'll go and hide somewhere quiet. Please find the medicine.

I think I infected her.

What is this?

Did you make it?

I wish I did.

What on earth is it?

I have no idea.

Hey.

Do you believe in time travel?

Why do you ask?

Do you believe in it?

I want to believe in it. I am a scientist.

But theory is different from reality.

Come on, Jin-gyeom.

He will be fine.

Stay positive.

He's a healthy man, you know. He will wake up soon.

I guess I'm really not normal.

The man…

who took care of me like a father might die.

I'm not sure…

how I feel right now.

I don't know if I am sad or in pain.

Or maybe I really don't feel anything.

I'm like that, too, when I'm shocked.

Nothing's wrong with you. Don't worry.

Have you eaten? There's a cafeteria in the basement.

I'm fine. I'm not hungry.

You should still eat something.

Should I get you something from the store?

I'll be quick. Wait here.

Gosh.

Why won't you pick up your phone? Do you know how many times I called you?

I even went to the police station to find you.

We have a lot to talk about.

Do you have time?

Why do you cry whenever you see me?

You must be Detective Park Jin-gyeom.

By any chance, do you study drones at this institute?

You still think of me as a criminal.

Someone saw your mother with him.

Ghost or monster, we'll just catch him again.

Don't do something you'll regret.

When the child becomes a time traveler,

the prophecy will begin.

Your mother was definitely not an ordinary housewife.

I think it'd be best if you don't get involved any further.

You must think I'm heartless.

There's a drone outside my window.