In a prosperous city in China, a bizarre serial murder occurred. The murderer was cunning and cruel, and he remained at large. When the police were helpless, a mysterious detective quietly appeared and started a thrilling cat-and-mouse game with his superb reasoning ability and sharp insight. At the same time, the entanglement between him and a female reporter is gradually revealed in suspense. The two are constantly attracted to each other in the process of tracing the truth, but are shrouded in crisis and conspiracy.