Cheng Mo, a forensic consultant who returned from studying abroad, and Shen Yi, the detective with the lowest detection rate in the police station, were forced to cooperate in the case of rotting corpses at the pier. Both sides were full of doubts about each other's professional abilities.
- **Crime Scene**: The first corpse was carefully arranged in the form of a "puppet", and the murderer deliberately left a provocative note, starting a cat-and-mouse game with the two protagonists.
