Detective Qin Feng

A series of ritualistic murders has shocked our city. All eighteen victims were posed in a posture of repentance, and each was missing their left hand.

Criminal investigator Qin Feng discovers that every victim was involved in an unsolved case from twenty years ago.

Newly arrived forensic pathologist Su Mian slips him a note during an autopsy: "Captain Qin, there was a photo of you in the third victim's pocket."

The deeper the investigation goes, the more the evidence points to someone inside the police station.

When the seventeenth body appears, Qin Feng receives a bloodstained envelope. Inside is a yellowed group photo

His father stands at the center, surrounded by the sixteen victims who are already dead.