A half-naked body found accidentally turned out to be the fourth victim in a series of murders. However, as the investigation deepens, police officer SA discovers that this series is completely different from ordinary serial murder cases. The victims have no similarities or any connections, making the case deadlocked. At the same time, the discoverer of the body H has become the discoverer of the body of another lawyer. His strange words and deeds, and elusive behavior patterns have implicated a series of related people. Who is the real gangster, the strange restaurant owner, the strange magician, the university professor or the police?