Qin Ming, the forensic expert of the Longfan City Police Department, showed his forensic style with his superb professional skills in an overseas case and became famous for a while. He should have gone further and further on the road of a cool male god, but because of the appearance of the new forensic assistant Chen Shiyu, he underwent subtle changes. Qin Ming and Lin Tao, the inseparable "golden partner", also gained more power at work because of the addition of the super-powerful female forensic doctor. The three-member exploration team experienced one bizarre and tragic heavy-taste scene after another, and through the clues on the corpse, they cleared the injustices of the difficult and complicated cases in Longfan City. However, the growth of evil is difficult to stop. A ghost-like killer suddenly rises in the city. This person's whereabouts are difficult to identify, and he leaves no traces when committing crimes. He even arrogantly leaves a bloody signature at the scene of the killing - scavenger. The nightmare of the citizens of Longfan began.