Original subtitles

Fei.

Hold on.

Go.

No.

No!

Go.

Go.

Chen,

why did you decide

to open a clinic in He City?

Then why did you

transfer to He City?

You know why.

I know you

don't want to forgive Li Ming.

But no matter what,

he was once

our good friend.

Come on. Cheers.

Cheers.

Congratulations!

Cheers!

Congratulations.

Thanks, Chen!

Thanks, Chen!

Qi!

Are you really going to be a

medical examiner after you graduate?

Yes.

I still hope

to uncover the truth

for the deceased.

Come on.

I don't know what he was thinking.

Why do you like

dealing with dead people?

Can't you be like me?

Studying for my master's degree while doing research.

Let me tell you,

Jiang City Medical University

is currently developing a new drug.

If they succeed,

it can save

many people.

You have ambitions

and dreams.

Come on,

for your dreams.

Cheers.

For dreams.

Cheers to dreams!

Cheers!

Cheers!

Friends?

If he considered us friends,

he wouldn't have done that.

People

change.

He would.

You would.

I would too.

He just forgot his initial

dream of saving people

and embarked on a path of no return.

But that was his choice.

It wasn't our fault, okay?

But Fei died because of him.

Do you know

what kind of patient I fear most

in all my years

as a psychologist?

It's the kind of people who know

that they refuse to wake up,

yet stubbornly refuse

to believe it.

Mr. Qi!

The results of the drug components

in Li Yiqi

and Li Shuting are out.

The drug composition in their bodies

doesn't match.

Hello?

The results are out.

Mr. Wu.

Where is Mrs. Wu?

She went on a trip abroad

with her friends.

She just called.

She was glad you

remembered my birthday.

So she won't

feel so guilty

leaving me

alone at home.

Sizhe.

How are you recovering?

I'm fully recovered.

Thanks for your concern.

I've been wanting to visit you.

But...

Mr. Wu,

please don't say that.

It's not convenient for you

to get involved in Li Ming's matter.

He's almost drunk but still wants to drink.

I'll get him another bottle.

Mr. Wu.

I used to celebrate my birthday

with the three of you.

But Li Ming is not here.

Li Ming has

disappointed me so much.

Even if he gave his life,

he couldn't get your girlfriend back.

How could I have

taught such a student?

Mr. Wu,

is it possible

that the drug formula Li Ming

prepared back then leaked?

It leaked out?

That shouldn't be possible.

Everyone

in the lab back then,

including me,

was investigated.

Everyone

was surprised.

We knew

he was busy every day.

No one expected him to be busy with this.

If that's the case,

then you need to investigate it.

It's better to find out the truth.

Mr. Wu.

You think I should investigate?

I've watched you grow up.

I know you too well.

As long as you have doubts,

even if I don't support you,

you'll still investigate.

So, do it.

Investigate.

Only by trying your best

will you know if you're

doing the right thing.

Mr. Wu.

Thank you.

But

if the result

isn't what you want,

you'll have to accept it.

So, what did you

find with those bones?

They're in the autopsy room.

Come on.

Mr. Qi.

Mr. Han.

These bones come

from multiple victims, right?

Yes.

The left and right femurs

aren't from the same person.

The left and right arm bones

aren't from the same person.

The limbs and pelvis don't match.

The thoracic

and cervical vertebrae

don't match either.

The hand

and foot aren't

from the same person.

And the skull

is missing.

How many people?

These are at least ten people's bones.

Ten people died?

Was this treated

the same way as the

bones from last time?

The bone surfaces are covered in phenolic resin.

And these bones

show no signs of natural erosion

or

natural ossification.

It seems someone

removed the skin and flesh

from the bone surfaces.

Current test results indicate

that the skin and flesh

were removed from the bone

using acid washing.

What about the DNA?

Have you extracted

a comparable sample?

No, we couldn't extract it.

Same as last time.

What about the clothing

fibers found at the scene?

Evidence Department has it.

Has anyone gone to Liu Yuanyuan's

house to collect samples?

Sampling has been done.

DNA has also

been extracted.

Now we can only wait for the results

of the clothing fiber analysis.

Mr. Han,

the results are out.

We found two

complete DNA sets.

One set with more samples

is definitely Liu Yuanyuan's.

The other set with fewer samples,

we think,

was left by people who had

contact with this clothing.

Could it be one

of the victims?

Mr. Qi hasn't extracted

any comparable DNA

from the bones yet.

Based on the current clues,

it can be confirmed

that there are at least ten victims.

The murderer first dealt

with the flesh of the corpses,

then took a portion from each skeleton

to assemble a human figure,

and discarded them

in various places around the city.

But the strangest thing

is that among

the ten corpses,

we could not extract DNA

to confirm the identities

of the deceased.

Let me go over it again.

The suspect Liu Yuanyuan

is 1.7 meters tall.

According to her colleagues,

she weighs about 50 kilograms.

We found the

clothes she wore at one

of the dumping sites.

And we already know

she bought a powerful solvent

and knives

at a supermarket.

These bones are all quite intact.

Phenolic resin adheres to the

bones quite completely.

This requires the murderer's

skills to be very high level.

Liu Yuanyuan

has no relevant

professional knowledge.

For an ordinary person,

dismembering ten people,

dissolving the bodies,

and distributing

the pieces over four

or five days

is not easy.

Mr. Qi is right.

Impossible.

Impossible.

Not to mention Liu Yuanyuan,

even a professional couldn't dismantle

and dump bodies

without leaving a clue.

There are indeed too many

doubts here.

Liu Yuanyuan and her neighbors

live very close

to each other.

If she killed and dismembered

ten people,

it's hard to imagine

that place being the first crime scene.

And we have checked

all the dumping sites.

There is no related

bloodstain or weapon.

This shows that these two sites

were not the actual

first scene of the case.

It could also indicate

that Liu Yuanyuan didn't do it.

She might just be a smokescreen

the murderer used

to mislead us.

Could it be a gang operation?

That is possible.

Based on the time the

informants reported,

the murderer completed all the

dumping actions in a short

period of time, even overnight.

This also fits the theory

of a group crime.

Well,

the places they chose

to dump were

under bridges,

in small wooded areas in parks,

or in abandoned factories.

There weren't cameras at those places.

This suggests

the murderer carefully

evaluated and selected

these dumping sites.

Could the hand and foot bones

found by the couple on Beishan

be the last part

the murderer dumped?

Otherwise, why burn the clothes?

I remember the

first security guard

who reported seeing a figure.

He thought he was exposed,

so he burned the clothes

after dumping the bodies?

Like Wan just said,

this is a tightly

planned crime.

The urgent task now

is to find Liu Yuanyuan.

Liu Yuanyuan lives

in an old community.

We only found a fragment

of surveillance footage that remains.

It shows

that four days ago

when she last appeared,

she was wearing

that red jacket and carrying

a black shoulder bag.

Liu Yuanyuan disappeared

at the end of an alley

in surveillance.

The alley leads

to a night market.

There're no cameras in the night market.

The market has many exits.

These exits lead

to main roads

that do have cameras.

If we want

to find her last image,

this investigation

will be very difficult.

This workload,

even if we include the entire team

or even all

the officers in the district,

would take about two weeks.

Is it possible

that Liu Yuanyuan never

left the night market?

Given the severity of the case,

we've decided

to establish a special task force

to concentrate efforts on solving it.

To improve efficiency,

the bureau has decided

to have Qi Sizhe join the task force

to assist you.

Yes.

Hello, have you

seen her before?

No.

Are you sure?

Okay, thank you.

Let's go check there.

Hello,

have you seen her before?

No.

Hello,

have you seen her before?

No.

Do you know her?

No.

Thank you.

Hello,

have you seen her before?

I've driven her before.

Are you sure?

Of course.

She's incredibly stingy.

We agreed on eight yuan.

After I took her there,

she only gave me five yuan.

Liu Yuanyuan

is usually very frugal

and rarely takes taxis.

Where did you take her?

Who are you?

We are...

Here.

We're not stingy.

Take us to the place she's been.

Take it.

Call Ms. Zhu and Wan over.

Okay.

Stop.

Rewind it a bit.

Found her!

Where did she go?

There are many buildings.

I'm not sure.

Are there any other videos?

Several buildings

are currently under renovation.

The cameras are being replaced.

The place she went

happened to be in the same direction.

What a coincidence.

Could this be the

primary crime scene?

The school is too big.

We need time to investigate.

Wan,

go ask the school leaders

to cooperate.

Check if anyone else saw Liu Yuanyuan

on the day she came in.

Okay.

Su,

make a copy of all the

video footage from the day

Liu Yuanyuan

disappeared until now.

Then check with Li to see

if there are any other

videos of her.

- Okay. - Ms. Zhu,

let's go back to see

if there are any new clues.

Okay.

The beef is here.

Here you go.

Thanks, Song.

Mr. Qi,

don't you think

Song seems troubled lately?

He hasn't said much

the last two times we've come.

Eat.

Song.

Two cut noodles.

I was thinking of going back

to the station to see

if you'd made any new discoveries.

But you're here.

It's lunchtime. We have to eat.

Okay.

We can't

figure out

the bones.

So we thought

we'd come over

to clear our heads.

Maybe we'll figure it out.

Why aren't you eating?

No appetite.

Mr. Qi.

Mr. Gao.

Mr. Han,

we only found out

that Liu Yuanyuan went

to He City Medical University.

But that school is too big.

Surveillance isn't effective.

We might need manual investigation

to see if we can find something.

Medical University?

Why would she

go there?

Don't talk about work.

Lunch first.

Come on.

You two have

to try this braised beef.

Why?

This is a must-eat dish

for medical

and law students.

At our first anatomy class,

we saw all the human organs

and skin tissues

soaked in formalin.

It's the same way they make

braised beef.

So after class,

our professor would take us for braised beef.

Anyone who threw up

would fail the course.

Gao Yuan.

What did you just say?

I said we used to eat braised beef

after anatomy class.

I know why now.

I know why DNA can't be

extracted

from bones, and why

there's phenolic resin.

There's another possibility.

These skeletal remains,

from which no DNA could be extracted,

showed no signs of insect

or microbial erosion,

nor any trace

of natural decomposition.

The murderer used some solution

to dissolve the flesh

and skin on the bones.

Therefore, we initially assumed

these were recently

murdered victims.

Yes.

Because someone did indeed

dissolve the flesh and skin.

But they didn't just

separate the flesh and skin.

They also chemically

treated the remains.

You have any ideas?

I think

these remains

aren't the bones

of victims at all.

They are specimens.

Specimens?

That's why there's

phenolic resin on the bones?

Formaldehyde and phenol

undergo condensation polymerization.

The resulting compound

is the phenolic resin

we find on the bone surface.

You mean

this yellow powder

wasn't attached

at the crime scene

but rather formed by the murderer

simultaneously using these two

substances on the bones,

creating phenolic resin?

That's right.

If formaldehyde is prepared

as an aqueous solution,

at a concentration of 37% to 40%,

it becomes formalin.

And this explains

the question

I've been

struggling with.

Why we couldn't

extract DNA

from the

skeletal remains.

All the skeletal remains we found

were human specimens

soaked in formalin, right?

Yes.

The DNA structure of specimens

soaked in formalin

for a long time

is destroyed.

This also explains

why the surface of these bones

hasn't undergone the

natural erosion process of osteoclastic resorption.

The murderer used the chemical reaction

between these two substances

removing any formalin residue,

and then disposed of these bones.

His purpose was

to keep us in the dark

about where the

remains came from.

The murderer's random disposal

was the first layer of defense.

When we found these remains,

his complex operations served

as the second

layer of defense.

This made us not think

that these were human specimens,

leading us to believe

that these were recent victims.

If this is the case,

does it mean there were no victims?

The murderer used such a complex

method to mislead us.

He must have something

he wanted to cover up.

Where were these human specimens

supposed to be?

Medical University.

Mr. Han!

This is the head

of security.

Hello.

Hello, Mr. Han.

Welcome.

This is the specimen building?

Yes.

It was the laboratory building.

After a new building was built,

this place was abandoned.

Only one room was left

as the specimen room.

Is there surveillance around here?

Who would come here?

Because there aren't

any valuables here,

the cameras haven't been

replaced since they broke.

Only the administrator

has the key to the

specimen room.

Not many people come here.

He's the security guard.

Just one security guard?

Yes,

he works during the day.

The door is locked at night.

Liu.

They are police officers.

Hello.

Have you seen her before?

No.

Are you sure?

Yes.

Thank you.

Ms. Zhu,

I'll take Mr. Qi inside to take a look.

You and Wan, go check

if there are any other exits.

This way.

How could there be any

missing specimens here?

Although there's one security guard,

we have always maintained

strict management.

Yes.

This area is my responsibility.

If anything's missing, I'll be expelled.

Come on.

Okay.

Be careful.

I'll go over there.

Xiaoxi,

go check if there

are any cameras.

Okay. Be careful.

Are there only five body donors here?

Yes.

Mr. Han.

All the specimens are here,

and they all match the records.

The most recent return dates

are all over a year ago.

Is this the only

specimen room?

Yes,

only this one.

Is there anywhere else in He City

besides here to store

human specimens?

No.

Su.

You just said the

most recent return

record for these specimens

is over a year ago?

But these specimen jars

were recently moved.

Su,

find out what's going on.

Then call the technical department.

Okay.

Come on, come with me.

Lead the way.

Officer,

what exactly happened?

I only have this one key.

I always carry it with me.

I even take it with me

to the bathroom.

I really don't know

how the specimens

could have been moved.

You sit here every day?

There's only

one entrance.

You should know

who comes in.

Did they register?

Actually,

I've always been here.

Sitting here

or lying down?

Hey,

what can you see like this?

The logistics department

has taken all the keys.

Only the specimen room

key is with me.

If someone comes to borrow a specimen or a cadaver,

they'll bring an approval slip.

Then I take them there.

No one comes at other times.

This is the approval slip?

Quite a few people came here.

They're all teachers and students.

Seven or eight a day.

Do they notify

you beforehand?

No.

Just bring the approval slip.

Okay, I got it.

I'll take this.

Anything else?

No.

Mr. Qi,

judging from their size,

these body parts all

come from the same corpse.

But the only missing

piece is her head.

It's now confirmed

that the murderer

first killed and dismembered the victim,

replacing the body parts with those

in the specimen room.

Then, he disposed of the specimen room parts,

leaving the remains,

which he scattered in various locations.

I noticed

that all the cuts on the body parts

are very clean.

They were made at the bone joints.

It seems the murderer

had a considerable understanding

of human anatomy

and anatomical knowledge.

However, we didn't find any

fatal wounds on the body.

There's redness at the ankle.

But the body

was soaked in formalin.

We can't determine

the cause of this

at the moment.

Well,

let's perform tissue separation on the

legs and try to extract DNA.

Okay.

Okay, got it.

Mr. Han,

we checked

Liu Yuanyuan's call records

and social connections.

She had no contact

with that guard.

Mr. Han.

What did you find?

There's a section of

wire mesh at the southeast corner

behind the specimen building.

We found a torn hole.

But judging from the rust,

it wasn't done recently.

After our investigation,

we found that if Liu Yuanyuan

really did commit murder

and dismemberment at the school,

she could only have done it in the specimen room.

But currently,

we have no evidence

to prove she went to the specimen room.

Before they moved,

all the keys were given

to the logistics department.

We just checked.

The only place she could

go was the specimen room.

That doesn't make sense.

It's also possible

that she committed

the murder outside,

brought the body parts in,

and then had the guard switch them.

But Liu Yuanyuan didn't seem

to be avoiding the cameras.

If her bag really

contained body parts,

she should have avoided them.

Have you got the results?

The DNA of missing persons

and bone fragments

didn't match.

The leg tissue

results are out?

The victim had arthritis.

Arthritis?

Notify the technical department

to go to her house to collect

her fingerprints

and DNA samples.

Bring back everything

she used before.

Was there a bottle

of painkillers

for arthritis among the

medicine bottles

Ms. Zhu collected?

Yes.

There is one person's DNA

that we have not compared.

We have the surveillance footage.

Okay. Get in.

The body parts in the

specimen room have confirmed.

It's Liu Yuanyuan's.

The murderer hid the body in a specimen.

The specimen room is likely the primary crime scene.

Who are you?

What are you doing in my office?

You wanted to use Liu Yuanyuan for live experiments.

So you hid her head?

Got it.

Since you found out,

I confess.

He confessed?

Not many people know about this.

They're from Medical University.

Someone was helping him.

I found the information on Ding Youmei

you mentioned.

She's now also an assistant at He City

Medical University.

I've seen Li Ming

wear this watch.

Wake up.

Not everyone's connected to Raw Diamond.

Do your job.