While investigating a case, criminal police officers Jiang Guangming (Ma Yili) and Shi Luo (Gao Zhiting) accidentally discovered that the crime scene depicted in the novel of writer Gu Jiming (Tong Dawei) and the crime scene they were investigating coincidentally overlapped. Fiction and reality intertwined. Is everything really just a coincidence? The emergence of the novel also provided a new direction for the two men's tracing, but at the same time it also led them to a deeper mystery... Case within case, mystery within mystery, who is the murderer hidden behind the scenes? The play is adapted from Matsumoto Qingzhang's novel of the same name.