In 2007.

At 3 a.m. on August 29, a homicide occurred in a resort on the outskirts of the capital of the country.

Three of the men were mutilated, and the scene was bloodied and horrific, and when the police arrived, they found that there was another survivor who had been stabbed three times and was dying.

A family of eight, seven dead and one seriously injured, the scene was cleaned up, there were no fingerprints, no dander, the CCTV was damaged, the murderer was a premeditated high-IQ criminal, could not find any clues, and finally became an unsolved case.

The only girl who survived was only 10 years old.

This unsolved case was archived by the police as the "829 Door Destruction Tragedy......

**

2020, late spring.

The capital of the country, the imperial city.

Seongnam District Police Station, Forensic Medical Building.

At nine o'clock in the evening, Mozart's Symphony No. 40 in G minor sounded on time in the No. 1 dissection room on the second floor.

Violas, violins, oboes and other instruments play a light, uplifting piece that reverberates in the lonely night.

In the cold and empty dissection room, only one place in front of the dissection table has a light.

One person and one corpse, the female forensic doctor held a thoracotomy in her left hand and a broken rib in her right hand.

She was wearing a Bluetooth headset in her left ear, and her face wearing a mask only showed a pair of dark and focused eyes:

"The deceased is a 54-year-old male, with an anal temperature of 23.5 degrees Celsius at the scene of the crime, and according to the liver temperature, corpse spots and the degree of rigidity of the corpse at the moment, the death was determined to be 16-17 hours, and the time of death was between 2 and 3 a.m. today...... There were four fractures in the ribs, one of which went into the lungs, but it was not fatal; Organ disease, which is a complication of diabetes, so it accelerates organ decay and necrosis. ”

She used a scalpel to cut open her stomach, "the food in her stomach was not digested, indicating that she died less than half an hour after eating...... Slight fibrosis of the heart, and ......"

She stopped suddenly, and the person on the other end of the Bluetooth headset immediately asked, "Have you found the cause of death?" ”

There was no response in the microphone, only the cold sound of instruments colliding, and through the microphone it seemed that you could imagine the scalpel cutting through the skin.

“…… OK, I'll see you in the living room in 10 minutes. Chi Che on the other end of the microphone knows her, and it's best not to disturb her work at this time.

He took the cord and turned to leave the office and go upstairs.

Ji Cheol's office is on the fifth floor, and he is the head of the forensic medicine department, who is in charge of the administration of the forensic department.

On the top floor is the reception area, where a variety of multi-functional meeting rooms are distributed.

Outside the VIP meeting room, there were uniformed policemen standing at the moment, and a group of people in the black pressure was estimated to be thirty or forty people, and everyone had a grim face.

There were so many people, but the scene was silent, and the atmosphere was very weird, like facing a great enemy.

Everyone automatically gave way, Ji Che pushed the door in, and there were four people in the conference room, which were higher than the police officers outside.

Of course, the atmosphere is also more oppressive.

Two Superintendents of Police I, one Inspector of Police III, and one ...... In front of the window, stand with your back to you.

Because of the backlight, I can't see the police rank clearly.

The man wears a navy blue uniform, is nearly 1.9 meters tall, and has a straight back, as beautiful as a poplar tree, containing great tenacity and strength.

He has his own aura, not angry but mighty, just a back can give people a strong sense of oppression.

Cold, arrogant, and forbearing, it was as if the endless dark night outside the window was spreading around him.

Chi Che was coldly startled, although the man's momentum had already explained his status, out of politeness, he still asked:

"Who is responsible for you here?"