It's very likely that the killer
is the man Lu Siping caught having sex in the car years ago.
He got caught cheating and was blackmailed.
He probably killed Lu Siping as revenge.
But why keep killing couples having sex in a car?
Captain Zhou, could you turn on the light?
I want to look at the file.
If Gao Liang was right about him working in this field,
he'll definitely know how to escape detection.
When he was caught cheating,
he probably felt humiliated.
Killing Lu Siping might have been for revenge.
But that couldn't ease his humiliation.
That's why he kills couples who were having sex in cars.
It might be his way of reliving his own experience
of the same scenario.
Guys, that's deep, I don't get it.
In other words, killing couples who have sex in cars
is his way to restore his humiliated dignity.
What a psycho.
Such an inconceivable logic.
It's already past seven o'clock.
Let's eat before we head back.
Sure, where should we go?
I don't know this area.
Captain, any ideas?
Guan, I don't know what to say.
Haigang team will laugh
if they knew we came here to eat.
I know you too well.
You never have more than 100 bucks.
What can you buy for us?
I don't care today. I'll use my credit card.
Sorry, we don't accept credit cards.
-You don't? -No.
See, they don't even accept credit cards.
You guys order. I'm going to the bathroom.
Hey.
-Guan-- -Captain Zhou...
you can use Alipay instead.
Most places take it.
Ah, yes.
I have that.
Bro, are you all right?
They know about us.
Who knows? Zhou Xun?
Han Bin.
Han Bin...
knows about us.
Why are you here?
It's late.
Go home
if you have time.
Everyone works hard, I can't slack off.
Found it.
-That one? -Yes.
Let me do it.
Excuse me.
This must be it.
A room keycard?
You sure Han Bin knows about us?
Not only that...
he's also been helping us.
But why?
Didn't you say he is a...
I don't understand.
What do you mean?
Although criminal profiling is possible,
the investigation tool of mimicking
the criminal's train of thoughts also does exist.
But...
Killing Lu Siping...
might've been revenge.
But that couldn't ease his humiliation.
That's why he kills couples who were having sex in cars.
It might be his way of reliving his own experience of the same scenario.
During the actual investigations,
it is really difficult to be completely subjective
while trying to figure out the way of thinking
of those with antisocial personality.
Can't you do that, too?
An experienced detective
with an advanced education
might be able to do it.
But one has to go through a rigorous deductive process and theory.
But he's not like that.
He does it too easily and too naturally.
Are you saying he's working completely by instinct?
So, Han Bin and this psycho killer are very similar?
I don't know.
He is hard to figure out.
We don't have to be wary of him.
But we mustn't let our guard down either.
By the way,
I keep forgetting to ask you.
Did you tell Dong Han about the window breaker?
Brother, why can't you trust me?
I'm telling you.
I didn't tell that Dong Han anything.
If you don't believe me,
you can ask Liu Yin, she was at the bar that day.
If you didn't tell her,
then the only other person
who knows this...
I called everyone here
because the only people who know the facts in this case
are now all gathered here.
I want to ask each and every one of you
and I want you to answer me honestly.
Have any of you told anybody
about our theory that the murder weapon could've been
a modified window breaker?
Not just the press,
but family or friends included.
We've been working overtime every day.
We don't even have time to see our family and friends.
If nobody said anything, I can tell you right now,
the only other person who knows about this
is the killer himself.
That means the killer leaked this detail on purpose
to inspire other copycats.
I don't know if that's his motive.
But from what's happened so far, he got what he wanted.
I've checked.
The first one to report about the details of the murder weapon
was the online edition of Jingang Headlines.
That means, the killer most likely got connected in some ways
with somebody who works there.
That was how he got them to spread the information.
Liu, call that reporter Dong in.
All right, that's all.
Hello, Zhang.
You got the footage?
Thanks so much.
No, it's okay.
I'll go to you.
Okay, see you soon.
Okay.
I'll go to Traffic Control.
I'll see if I can find some footage of that Jetta.
All right. Zhou.
Drive Mr. Guan there.
Don't just stand there.
You didn't tell your team, did you?
Captain Guan.
Did you read the documents I gave you?
Yes, I did.
Ya'nan, I thank you on his behalf.
But people are watching.
Try not to get involved.
Did you read both documents?
Yes.
I'll look into it.
Come in, Ms. Dong.
Hi.
Ms. Dong.
Well, I'm really sorry. I apologize for what happened before.
To be fair, neither of us is the killer.
We're all on the same side, trying to fight crime.
Have a seat.
Come, sit down.
Thank you for assisting in our investigation.
We wanted to verify some facts
which will determine if we can catch the killer.
Captain Zhou, we have our own code of ethics to abide by.
But deep down we hope to catch the killer, too.
We'll do our best to help in solving the case.
Thank you.
Mr. Guan, what did you get from Traffic Control?
-Hello. -Guan.
Where are you?
We're heading to Forensics from Traffic.
Forensics?
The drive we got from them didn't work.
Some photos didn't work so I called.
Mr. Wang happens to be there, so I'm going over now.
We're getting the photos again.
Guan,
Ms. Dong said she found out about the details of the murder weapon
when she conducted the interviews at Forensics.
A female employee there told her.
It's likely Fan Liyun, the woman at the front.
So, is she...
Even if she isn't the killer, she's definitely connected to him.
Her cell phone is off but we found her address.
We're on our way.
Should we go over, too?
No. Find out more about her from Director Wang.
-Keep me posted -Okay.
They found the killer?
-Captain Guan. -Director Wang.
Sorry about the CD.
I made two copies.
One is in a CD, the other is in a USB drive.
I'm sorry we held you up.
Thanks and sorry to trouble you so late.
No worries, I'm working tonight.
You guys are working harder than me.
Director Wang, a lady name Fan Liyun brought us in
the first time we came here.
Could you tell us more about her?
Fan Liyun?
She's a senior analyst who's been working here for a long time.
What's wrong?
She might have told the press some details only the killer would know.
Is she married?
I think so.
Her husband came to our yearly party at the Institute.
Director Wang,
is this your Jetta?
Before Dong Han interviewed Fan Liyun,
she called Wang Zhige for advice.
Wang Zhige told her it was okay
to tell the press what the police told them.
According to Fan Liyun,
Wang Zhige is very strict with his employees.
This includes where things go,
trash disposal, the order of documents
and even the naming of digital files.
He shook Captain Guan's hand at the door last time.
But soon after, he left the room.
When he came back, his hands smelled of soap.
That means he carefully washed his hands.
As we were leaving,
he carefully avoided shaking hands again.
He's the owner and only driver of that silver-grey Jetta.
His staff remembers that he has a hanging accessory
on his rear-view mirror.
We didn't find it when we seized his car.
Did you search the car?
We searched every inch. We got nothing.
Nor the cloth that covered the plate or the window breaker.
It was cleaned carefully.
Maybe he has a different place to hide these items?
Or he dumped them.
That means although we got him, we don't have any evidence.
His house is being searched now.
Wang is taking his wife in for questioning now.
Let's see if that gives us anything.
Guan, can you get his statement?
He is a solid anti-detection violent criminal.
When we took him in, he didn't run or resist.
He's been working in Forensics,
so he knows that even if we suspect him or detain him,
he didn't leave behind any incriminating evidence.
No matter what, we can keep him for 48 hours.
Zhou,
let me handle this.
Okay, I'll give you a chance.
I can't imagine that the killer was so close to us all this time.
And he looks so normal, too.
Captain Guan, perfect timing.
His wife is Tang Ying.
Here you go.
Look.
We searched their house
and found out that Wang Zhige keeps his house really clean.
According to his wife,
he has always been a clean freak and showed signs of OCD.
The other thing is his wife was pregnant
when Lu Siping caught him having sex with a hooker.
But the baby stopped growing so she miscarried
four to five months into the pregnancy.
Also, his wife has no idea that he's a serial killer
and didn't know about the hooker incident five years ago.
All these years,
you've never noticed anything weird about your husband?
I don't understand why you're doing this.
Other than saying this repeatedly, can't you say something else?
Only the killer would know the detail you let Fan tell the press.
At this point,
it's time to own up to what you've done.
I was wrong to guess what weapon the killer might have used.
I should have thought twice before telling the press.
But none of these constitute a crime.
What?
You couldn't hold it when your wife's pregnant?
But I'm curious.
You're such a clean freak.
How could you stand a dirty woman like that?
You won't get away with this.
Listen.
We'll find the staff of the motel
and let them ID you.
We'll get all the surveillance footage in Jingang.
We'll definitely find some footage of you.
This will be the end of you.
There's no hope for you.
You killed nine people.
Only punishment awaits you.
You've killed so many.
Can you sleep at night?
What? You don't like people touching you?
Listen.
Soon, we'll take you to jail.
There, you'll find hundreds of people and their hands waiting for you.
You'll confess sooner or later.
This guy has OCD and he is a germophobe.
He couldn't stand being touched.
I think he'll crack since he has to stay in jail for 48 hours.
I don't think so.
He killed so many people.
And calmly cleaned up and arranged the bodies.
He won't break easily.
What you did there was just a pay back.
He won't say anything incriminating.
We got the guy.
But we have no evidence.
Is this a joke?
We have the victim's car, his car, his house, his wife, and himself.
We'll find something if we look hard enough.
But if we can't find any evidence within 48 hours...
We'll release him.
And if he kills someone again, we'll catch him doing it.
Okay.
If we don't have any evidence, must we really release him?
If we could always find evidence,
there wouldn't be any unsolved cases.
Let's go home.
Did you find any lead?
The mats and seat covers are new.
It's hard to find anything.
I'll keep trying.
Gao will bring their equipment tomorrow.
Let's go home for now. Get some rest.
Let's go.
No evidence?
There's not much I can do.
We'll see if you find anything the next time you go.
You're good at interrogations.
A violent criminal like Wang who can calmly clean up the scene
and arrange the bodies,
his psychological defense mechanism must be
strong to get a confession
out of him.
Are you actually Han Bin's twin?
He said it, too?
Almost word for word.
That time at Forensics,
I didn't notice Wang Zhige washed his hands.
Maybe it was then when Han Bin got suspicious.
That might also explain why he hasn't exposed us.
What do you mean?
He wants to see happens next.
-See what will happen? -Yes.
Whether it's Wang Zhige or us,
he just wants to see how it ends as a bystander.
I really don't get you geniuses.
By the way, Ya'nan told me she gave you two reports.
Why didn't you show me?
The second report?
She told you that?
She said she gave you two.
I think she's testing us.
Testing us?
She only gave me one, but she told you there's two to see your reaction.
I think she suspects us.
If she already knows, why don't we tell her?
Until she confronts us, let's keep up the charade.
The more people know, the more trouble we'll have.
Mr. Guan.
Where's everyone?
We're getting Wang Zhige back from jail today.
Zhao went with to make sure nothing would go wrong.
The rest are looking for evidence.
Our two districts have split up into almost ten teams,
all of them trying to find this ex-classmate of his.
But so far, they found nothing yet.
I think Wang Zhige was lying to Lu Siping when he said she was his ex-classmate.
How about the motel staff?
We found them.
It likely won't help.
Can we start arranging a lineup?
Yes. We'll do one when Wang Zhige gets back.
I'm not holding my breath.
Even if he's not here, we can show them his photo.
We need at least 10 for a photo lineup, but only 5 for a police lineup.
I don't think they'll be able to pick him out from 5 people
let alone from 10.
We got nothing.
Knowing him, Wang Zhige was probably disguised
to cover his features when he went to the motel.
Yes.
Well, what about the woman with Lu Siping?
But the only person who could identify her is Lu Siping who is dead.
So there's not much hope there.
Captains, we've found it.
We got evidence.
-A fiber? -Yes.
It's under the driver's seat floormat.
It's a 21-count pure combed cotton thread.
Same fabric as Chang Aiai's underwear.
And look at this.
A blood stain.
We'll need time for the DNA analysis.
But the blood type...
Matches Chang Aiai's.
Done!
We've got this sucker now. He can't deny it.
Good job, Zhao.
- You're getting better. -Thanks.
-Are you leaving? -Good job.
We can take a breath now.
Yes.
We're almost there.
I've been tearing up a lot.
Let me see.
Trachoma?
What trachoma? I'm just too tired.
Sorry.
I'm afraid we can't use this.
After getting Wang Zhige,
I went to the Property
and got the victim's clothes to compare it with the upholstery.
I might have dropped it by accident.
Sorry to get you all excited.
-Guan, how could you... -What?
Would you rather just ignore this?
Look.
It's very easy to plant evidence.
I can even do it with more credibility.
Did I hear that right?
What the heck?
Captain Guan,
I got 4 sets of prints on the motel key card.
But none of them were Wang Zhige's.
Right.
Leave it here.
EVIDENCE EXAMINATION
Did you do the lineup?
They thought it was our Wang who killed Lu Siping.
I really felt like locking Wang up instead.
It's okay.
We have one more day.
Everyone from Haigang are trying to find the woman Wang Zhige was with.
-If we... -So, what if we do?
If we find her,
we'll understand what happened with Lu Siping.
-And then we can... -And then we can prove that he
killed Lu Siping?
And the other victims?
We need to do something, Guan.
Guan, tell me the truth.
Did you really drop that fabric in the car?
Will you really do anything to establish his guilt?
What the heck?
You scared me.
I'm sorry, Mr. Guan.
I just wanted to...
Think about it.
If we establish his guilt like this,
what if, just what if we find out one day
that he's not the killer?
What would we do?
But, Mr. Guan, didn't you say yesterday...
I said I'd establish guilt.
But we have to do it the right and legal way.
Wang Zhige is a special case.
He kept killing all these years,
mainly because he knows how evidence works
and how not to get caught.
But Locard's Exchange Principle tells us that
the perpetrator will bring something into the crime scene
and leave with something from it.
He is no exception.
Look at this.
He was the one who enhanced
and made this video so clear.
How ironic.
Five years ago, you were blackmailed.
You were scarred by that.
That's why you started killing people obsessively to recover
from that sense of humiliation.
Many years have gone by.
I don't know about the humiliation you felt,
but you've definitely gotten better at killing people.
You have a professional advantage at wiping out leads.
You even leaked misleading news yourself.
You turned your murders into unsolved cases.
This gets you more excited.
This boosts your ego.
But it also made you feel emptier.
Until you saw the press making a big deal out of Li Disen's murder,
you knew you didn't leave any evidence behind.
You even leaked information to us and to the press yourself.
Do you think you're some sort of genius?
Do you think you're flawless?
Do you think we won't be able to get you despite the evidence you leaked?
You're wrong.
We've established that you're the one who killed these nine people.
Where's the evidence?
Did you see his finger?
What is that?
Uncuff him.
Take it easy.
What is this?
Thank you, Capt Guan.
Pin left hand down.
Have you removed your wedding ring in the past ten years?
-Don't move. -Let go of me!
Don't touch me!
Get your dirty hands off of me.
Let go of me!
Don't touch me!
There's no trace of blood.
That's fine.
This is enough.
Nicely done.
The victim's blood was found inside the ring.
That's incontrovertible proof.
The Bureau just called.
They're very happy with our task force.
Captain Guan, looks like you can't leave even if you want to.
Ms. Dong is here.
Liu, take care of her.
Make sure Jingang Headlines gets the first scoop.
-This way, Ms. Dong. -Thank you.
Pressure is momentum.
Thanks to you, we solved the case so quickly.
We did this together.
Report it as is.
It was such an honor to work with you this time.
I hope we'll see each other more often.
Thank you.
I've learned a lot. Thank you.
I should be thanking you. Keep in touch.
Let's do that.
All right. See you later.
Don't go yet. Let's go eat and celebrate.
Okay?
Guan, don't worry.
I will make you look good in my report for this case.
As Liu said,
the Bureau knows how much you did for this case.
They've warmed up to you.
Ms. Dong's article will also help.
Perfect.
-Let's eat! -Let's go.
Wait.
For who?
For a hypothesis.
Hold on.
Ms. Tang.
We found a key card from your husband's first murder.
Although he cleaned the scene,
this card was left in the wall slot after Lu Siping opened the door.
Your husband didn't feel the need to take it after killing Lu.
This key card is the only evidence left
that was not cleaned by him.
We found four sets of prints here.
But none of them match your husband's.
None of these prints even matched Lu Siping's prints.
The motel staff told us
Lu Siping was with a woman when he got the room.
He used his own ID for registration.
But the woman took the key card.
There is one thing I don't understand about this case.
Who opened the door for your husband?
So, I'm sorry, Ms. Tang.
We need to take your prints for comparison purposes.
♪ This vast sea of people ♪
♪ Waves without wind ♪
♪ The turbulent undercurrent runs deep ♪
♪ As one falls, another soon rises ♪
♪ This perfect weather Of spring and fall ♪
♪ Have you been well? ♪
♪ The lonesome moon ♪
♪ Sails through wind and waves ♪
♪ Who has tears in his heart? ♪
♪ Struggling between right and wrong ♪
♪ Pretending none of it matters ♪
♪ Atone for love ♪
♪ Who has no regret in their youth ♪
♪ Cheers to bravery ♪
♪ Riding the cloud against the wind ♪
♪ Light scattered darkness ♪
♪ The night heading into day ♪
♪ Will there be an end ♪
♪ Starlight fades ♪
♪ Imminently ♪
♪ Gloriously ♪
♪ Despite the consequences ♪
♪ Who will compromise ♪
♪ Who will say goodbye ♪
♪ This vast sea of people ♪
♪ Waves without wind ♪
♪ The turbulent undercurrent runs deep ♪
♪ As one falls, another soon rises ♪
♪ This perfect weather Of spring and fall ♪
♪ Have you been well? ♪
♪ The lonesome moon ♪
♪ Sails through wind and waves ♪
♪ Who has tears in his heart? ♪
♪ Struggling between right and wrong ♪
♪ Pretending none of it matters ♪
♪ Atone for love ♪
♪ Who has no regret in their youth ♪
♪ Cheers to bravery ♪
♪ Riding the cloud against the wind ♪
♪ Light scattered darkness ♪
♪ The night heading into day ♪
♪ Will there be an end ♪
♪ Starlight fades ♪
♪ Imminently ♪
♪ Gloriously ♪
♪ Despite the consequences ♪
♪ Who will compromise ♪
♪ Who will say goodbye ♪
♪ The night heading into day ♪
♪ Will there be an end ♪
♪ Starlight fades ♪
♪ Imminently ♪
♪ Gloriously ♪
♪ Despite the consequences ♪
♪ Who will compromise ♪
♪ Who will say goodbye ♪
Subtitle translation by: Daniel Hui