They met each other on the university campus when they were young, but fate later made them travel far apart.
Shen Yi put on a police uniform and became the criminal investigation captain of the city bureau. He rushed to scenes filled with the smell of blood every day, persistently searching for clues left by the murderer.
A deliberate plot at a family dinner almost destroyed Gu Jingzhou, who had just graduated from graduate school, but Shen Yi appeared in time and pulled him out of the boundless darkness.
The terrifying experiences in the past allowed Gu Jingzhou to see through the paranoia and malice hidden deep in human nature. He lost his bookishness and was hired as a psychological consultant for the city bureau, specializing in psychological profiling of criminals.
A case of dismemberment of a vile nature suddenly appeared. The murderer was very thoughtful and cleared all traces of the scene. The conventional investigation was at a deadlock.
The visible remains of the knife marks were traced by Shen Yi, and the dark obsession hidden deep in his heart was left to Gu Jingzhou to analyze.
One holds physical evidence and confronts the cruelty of the world; the other cuts into people's hearts and deciphers hidden motives.
Old friends reunite at a dangerous crime scene, and the bonds of the past become each other's confidence.
During the long night when no one knew about it, Shen Yi kept him safe, and Gu Jingzhou helped him see through the lies.
They stepped into the abyss side by side, pushed through the layers of fog, uncovered the demons hidden in the crowd, and slowly clarified their thoughts that had been hidden for many years.
Sin will eventually be exposed to the sun, and he is Shen Yi's only destination during his long and dangerous years.
Purpose: Criminal investigation captain Shen Yi and psychological consultant Gu Jingzhou work together to solve murder cases, pursue the truth of the crime, adhere to justice in the process of solving the case, redeem each other, and protect the sincerity in the darkness of human nature.
