Ji Lin was once the sharpest knife in the criminal investigation world. The death warrant he signed with his own hand made seven suspects commit suicide, but before the seventh person was executed, he whispered: "You have the wrong person." Three years later, the serial murder case reappeared, with the same method. The only clue was that the name of the person who was executed that year was engraved on the palm of the deceased. Lu Zhaoya, the "murderer" who was supposed to die, returned to the police station as a forensic doctor. Ji Lin no longer believed in the evidence, but only believed in the verdict written by himself; Lu Zhaoya was as silent as a shadow, but left a code beside each corpse that only Ji Lin could understand. When the truth is buried in the abyss of blood and lies, who is the real hunter and who is the hunted lamb?
