Original subtitles

I'm going to buy something.

Neutral water wax is usually found in car cleaning agents.

I believe that the person who cleaned up the site probably drove there.

Here. Try this.

You've worked hard.

Try my sister's cooking skills.

- Please excuse me if I overlooked anything. - Not at all.

Come.

Come. Welcome.

Try it.

- How does it taste? - Delicious.

How many times did I tell you? You need to buy light soy sauce. You bought dark soy sauce again.

It didn't bring out the best in my cooking.

I've been too tired lately. I remembered incorrectly.

Seems like starting from the night of the 16th, you've always been tired.

Shen Yi, help me talk to him.

He only thinks about work every day and doesn't keep his older sister company.

I'll keep you company after this workload gets lighter.

- Here. - Thank you.

By the way, I haven't seen you wear your watch for a few days already.

It broke.

- What's wrong with it? - It stopped working.

Is that so?

I know a master who's great at watch repairs.

Why don't you give me your watch and I'll have it repaired for you?

Look at my memory. Didn't you give it to me for repairs? I've already had it repaired. I forgot.

It's just that the small parts were a little worn out.

Not a major problem at all.

- Hurry, eat your food now. It's getting cold. - Okay.

Here.

Where's the repaired watch? Can I take a look?

Sure. I'll go get it.

You seem to be particularly attentive to my watch.

I'm just concerned.

Here. What do you think of the repairs?

Since you like it so much, I can let you wear it for a couple of days.

It's been repaired well.

Come, let's drink. Be our guest more often.

Okay.

How does Captain Du generally handle cases?

I'd like to understand so I can work better with him.

Captain Cheng is usually very cool.

I'm asking about when he's handling cases.

He's even more cool when handling cases.

[Cool?]

This Du Cheng...

no one knows better than him how to search for clues to find the criminals.

If he weren't a detective...

[Good at disguises]

[Does he commit crimes?]

Good job.

There's so much involved in this case, plus the timeline is so long.

It must be tough to organize the information.

Captain Cheng has always been following up on this.

I'm merely helping him organize it.

[Investigation Statement]

Was Captain Lei's last call to Captain Du?

When we discovered him, he was just below the dam.

Don't you find this really strange?

The same murderer

continuously killed so many people in a row,

but it has been seven years.

We don't even know who he is.

Why?

Why is he always one step ahead of us?

If you want to understand more about the situation, go ask Shen Yi.

They're partners.

- Shen Yi? - Yes.

[Best partners, Ace portraitist, Shen Yi]

Instructor Shen.

- Captain Lu. - Am I disturbing you?

No, no. Please come in.

Do you mind if I take a look around?

Of course not. Go ahead.

You... really live up to your name.

I kept hearing about you when I was in the city bureau.

I finally have the opportunity to meet Beijiang's amazing sketch artist detective who broke cases.

The merit doesn't solely belong to me.

Sketching is just a train of thought.

The conclusion of a case...

still depends on everyone.

Well said.

Hey, I read about how you broke some cases in the journal.

You and Du Cheng broke those cases together.

You both collaborated with a lot of tacit agreement on the Cao Dong case.

How were you so certain that he could read and understand your signals?

I don't know either.

It could be due to some basic trust.

He was the only one I could trust at the time.

What kind of person is he in your heart?

Don't misunderstand. I merely want to understand his style when handling cases.

Frankly speaking, I'm unable to sum it up.

However, I think that...

you can communicate more with him.

Do you have any views about this case?

None at the moment.

All right. If you have any further thoughts, feel free to communicate with me anytime.

Although I haven't been here for long,

I would like to integrate as soon as possible. One extra person is one more idea.

All right. I won't disturb you any further.

Officer Du, have you received the photo?

He's the one who killed Lei Yifei.

- Medical Examiner He. - Shen Yi.

I want to see the remnants left by M.

See the remnants?

Last time, you asked me to help examine the car wash detergent.

Its ingredients were identical to the detergent found at the scene of M's death.

Do you have some new clues?

Oh.

Not yet.

What is this?

It's salt.

It's normal to see salt in the body's endocrine system.

But why is it on the jacket and the shoes?

Maybe she visited the beach before she died?

The beach?

She lived by the sea.

Have you found some new clues?

I suspect that M went to places like the seaside before she died. So I want to go check.

The seaside? The seaside is such a large area, are you planning on searching it by yourself?

The clues aren't certain yet.

I don't want to startle too many people.

It's okay. I'll transfer someone from the municipal bureau to help you.

Shen Yi!

Captain Lu is also here.

I heard He Rongyue say that you suspect M was living by the sea before she died?

I'm not sure yet.

That's right. We're ready to send people to check.

No need. I'll fully support it.

Jiang Feng, get the whole team out, and search along the beach.

Let's go!

Mister, let me ask you something. Have you seen this person?

- No. - Thanks.

If M lived near here, she would have needed to buy necessities for daily living.

We can look for some markets nearby.

I checked the map. Within a five-kilometer distance,

there are three small grocery stores.

Captain Lu, I suggest that we divide into three groups to visit the three markets separately. Shen Yi, come with me.

- Captain Cheng, then I... - Go.

[Prompt: No file available]

Found it. An unlicensed taxi driver had given a ride to M previously.

Just to the dock straight ahead, in the small fishing village.

Notify the forensics team to come and take biological samples to see if they belong to M.

Yes.

Who is this?

Take it back to the bureau to check.

Based on Forensic's lab result, M indeed lived in the hut in the fishing village.

In M's hut, we found this man's photo. His name is Zhou Jun.

Male, 41 years old.

At the age of 22, he went to prison for three years for assault causing bodily harm.

After he was released from prison, he worked as a driver for a year at a shipping company.

But he was terminated later and became unemployed.

Until 2016, when the Hejian Library was completed,

he was hired as an administrative assistant at the library and has worked there since.

Through our investigation, he has no social connections to M.

We also didn't find any indication that M visited this library before.

During the investigation over the last few days,

we compared Zhou Jun's attendance record at the library and traced his whereabouts.

It shows that from the night of September 16 to the daytime of September 17,

he stayed inside the library the entire time and had no time to commit the crime.

But why did this photo appear at M's home?

There isn't a reasonable explanation yet at this time.

Summon Zhou Jun for questioning.

Captain Du, the motive for the case isn't certain yet and the time doesn't match.

I have my own considerations.

Summon Zhou Jun for questioning.

Instructor Shen, please stay.

Do you also think this decision is too hasty?

Or has he always been like this?

Since there's a new suspect, let's return to the clues that were previously obtained

and start the investigation again.

You mean, the surveillance recordings from the Huige Hotel?

[Hejian Library]

[The Head of Cyber City, Sharing the Future of Beijiang]

[2021 - Hejian Library - Presentation Session]

Prepare to take action.

Silver Eagle. This software is an advanced information security system.

The concern for information being leaked has become a thing of the past.

In a few days, Tongcheng and Beijiang's

largest internet provider will sign a collaboration agreement.

The Silver Eagle System will be added to every cell phone.

Captain Cheng.

Our interrogation has taken so long already. All the tricks we can use have been used.

He's saying nothing.

The 24 hours will be up soon.

It's been over three hours.

He either says he doesn't know or he says nothing.

We can't continue like this.

When the time is up, we will have to release him.

Let me do it.

- Let's chat a little. - Can you turn off the light?

You've been here for so long. I thought you only knew how to say "I don't know".

How are you feeling right now?

Do you feel really tired?

When people are tired,

they'll make mistakes. Isn't that right?

Someone's taught you how to deal with the police. Isn't that right?

Most people would respond when they're asked these questions.

It's either yes or no.

Staying quiet and not answering,

it only shows that you are hiding something.

We've met before.

- No. - How did you know where she was going?

- I didn't know. - You followed her.

- I didn't. - I compared your appearance to the recorded image, it's a complete match.

- You killed M! - I didn't.

That wasn't a question.

You don't need to answer me.

There's surveillance monitoring everywhere in the library.

Don't think that you managed it flawlessly. What M left behind is much more than you think.

- I'm busy working in the library every day. - You weren't only involved in M's case,

you can't escape from responsibility for other killings either.

- The trail of your life looks clean, but it's because someone cleaned it up for you! - You can check it all.

Who is that person?

You can...

investigate.

Of course, we'll investigate.

But let me tell you. He can't help you this time! He can't help you!

You'll end up like M!

You're an abandoned chess piece!

How are you so sure that he's connected to the case?

The suspect's appearance and physical traits

being similar to that of M's killer

in this situation,

isn't something we can control.

All M's home had was a photo of him.

I made it up.

To trick him.

How much time is left?

Less than twenty minutes.

Then when the time is up,

do we let him go...

or not?

Let him go.

I'll personally escort him home.

[Hejian Library]

Zhou Jun!

- Officer Du. - Is there a restroom nearby?

- I'll take you there. - Sure.

This way.

The angle of this surveillance camera makes it difficult to see the scene.

But I carefully watched it for two days and finally discovered something.

Here. Someone is reflected.

Can you enhance the video's clarity?

I've tried several times already and still can't get it.

But the suspect is very likely the one that's been filmed.

Let's do this. I know a few third-party cybersecurity companies because of technical collaborations.

Their software can enhance the video's clarity. I'll contact them.

I can draw him.

No need. Their software should be able to do it.

Captain Lu can ask for their help, but I only believe my drawing pen.

I'll use my own way to find the killer.

Shen Yi!

Shen Yi, have you been able to do the drawing yet?

Hello, Captain Cheng.

Don't get involved.

I know what to do.

The guess has been confirmed.

How does that make you feel?

The first time...

This is the first time that I wish I drew it incorrectly.

You're still inexperienced. Being fair and just is what's most important in being a police officer.

Since you came by yourself,

it's obvious you aren't here to arrest me.

But you also left the drawing in your studio so that everyone can see it.

So you're not here to tip me off, either.

Why exactly are you here?

Giving you a chance to choose.

Tell me why.

[Tongcheng Tower]

Come. This way, please.

Captain Lu.

- Hello. Welcome, Captain Lu. - President Chen.

The police department contacted many companies with related technology.

Everyone said your technology is the best. So we have to bother you this time.

We appreciate the police for trusting us. Tongcheng is just doing what we should,

to do our best to assist the police department's work.

Our technicians have already resolved the video you sent over.

- Come with me. I'll show you. - Please.

M called me the night before the day she died.

Officer Du, have you received the photo?

He's the one who killed Lei Yifei.

You want to turn yourself in?

I'm tired.

- You killed my colleague. - I'm not the one who did it.

The killer who pursued me did it.

They've already found me.

I could lose my life at anytime.

I can tell you the truth.

You'll have to guarantee my safety.

Then I'll cooperate with you.

Why should I believe you?

Because, right now, I'm the only one who has proof.

What proof?

The proof that he did the killing.

And the list of names in that group.

Behind the killer who's pursuing me,

there's still someone issuing the orders.

- Who is he? - I don't know.

I've never met him, but a long time ago

when the killer was talking to him on the phone,

I heard his voice.

Also, recently,

when I received a threatening call from the killer, I heard that voice again.

Did you hear what he was saying?

I didn't hear it clearly.

I only heard a few words, "impenetrable wall."

How about it, Officer Du?

If you're interested, come see me alone.

And then you went to see her

and fought with M.

The face of your watch was broken there.

Having Sister Qing repair it,

also gave you a cover.

A fight did occur.

But it wasn't with M, but with Zhou Jun.

Zhou Jun killed M?

At M's home, I discovered her diary.

The pages inside had been ripped out.

This is what I copied through a rubbing.

Their organization is like a well-defined pipeline.

Zhou Jun is responsible for kidnapping and collecting people.

M is responsible for making deals and shipping.

But the most important link in the middle hasn't appeared yet.

The link that connects the buyers and the sellers.

That question mark...

If you turn in this piece of paper...

You should've guessed by now why Lu Haizhou is here, right?

To investigate you.

Since they want to frame me,

hastily turning it in will only startle the snake in the grass.

You set all of this up.

You haven't talked about it because you want to find the person behind the scenes.

I want that person to think that his scheme is succeeding.

Only then will they let their guard down.

You planned this a long time ago, right?

The first step, you realized at the crime scene that you were framed.

So you erased any trace evidence so that they couldn't get to you.

The second step, put up the photo at M's home to lead us

to change the target of the investigation and locate Zhou Jun.

The third step,

interrogate Zhou Jun to force him to reveal the culprit.

But I didn't think that Zhou Jun wouldn't talk at all despite everything.

So you've thought of a fourth step.

Release Zhou Jun.

Right from the start, when the surveillance monitor didn't film any trace of the killer,

I realized that they likely have the ability to modify surveillance recordings.

That's why I deliberately chatted with Zhou Jun under surveillance.

This way,

they'll make their move again.

You're using yourself as bait.

Countering their moves as you go.

Continuously plotting.

All to lure out that question mark.

It's like I'm sitting at a giant poker table.

The moment M died, I knew...

I had very little time left.

Before I leave the game,

I want to find out as much as I can about who the question mark is.

Unfortunately, it's too late.

I've investigated all I could.

The rest is up to you.

Why did you even have to hide it from me?

Even if I escaped their trap,

they would have another move.

They'll investigate me eventually.

If I am suspected,

everyone around me will be excluded.

Leaving you in the dark...

is the only chance to find the truth.

You're my trump card.

Find that question mark.

Officer Lu, this is the person in the security footage.