During the investigation of a brutal serial murder case, DNA evidence actually pointed to Chen Feng, the deputy captain of the Criminal Investigation Detachment. At the closing meeting, when all the evidence and suspicion pointed to him, Chen Feng made incredible accusations against his partner Shen Yu. The heavy truth gradually emerged with a cold kiss and an unopened lie detector, and Shen Yu found that everything he believed in was crumbling. He had to face a suffocating reality - he might be the real prisoner in this murder-hunting game.
Concept: The only witness to the truth is the designer of the perfect crime.