On a night when a snowstorm raged, the criminal police captain Zhou Lin was investigating a serial murder case when his car broke down and he was forced to hide in an abandoned nursing home. Deep in the dark corridor, the third corpse was displayed in a strange posture, with provocative writing written against him clearly written next to it - "You came too late."
The sudden appearance of criminal psychologist Shen Que made the case even more confusing. This elegant "genius consultant" revealed the key clues that Zhou Lin had deliberately concealed based on only the slightest traces at the scene, and even revealed the connection between the case and an unsolved case twenty years ago - and that case was the source of Zhou Lin's sister's disappearance. In the tit-for-tat confrontation between the two, Shen indeed showed an unusual understanding of Zhou Lin's past, and the faint laughter of children in the darkness gradually overlapped with his sister's last cry for help in his memory...
When a crisis suddenly strikes, these two "geniuses" who are suspicious of each other are forced to join forces. Shen Que used his near-predictive reasoning ability to get closer to the truth step by step, but Zhou Lin discovered that there was a more dangerous secret hidden under his calm appearance. The sanatorium blocked by the snow and wind turned into a bloody chessboard, and the murderer seemed to be able to predict their every move. And the most deadly torture always hangs in Zhou Lin's mind: Is Shen Que an alliance for the truth, or the beginning of another well-planned revenge?
Concept: Crime is the mirror image of unhealed wounds - when the detective stares into the abyss, the abyss is using his memory to weave a new cage.