A hard-hitting crime and forensic investigation novel centered on a team of detectives led by Wu Yan. Using advanced techniques such as criminal profiling and crime-scene tracking, they solve one bizarre and complex case after another, including the headless male corpse case, the murders of eight women, and the dismemberment case on Food Street. Drawing on real cases and depicting them with striking realism, the novel exposes social tensions and the darker side of human nature, challenging readers' assumptions about crime. It not only reveals the bewildering twists of each case and the detectives' intelligence and courage, but also prompts deep reflection on nature and nurture, good and evil, and human nature. Criminals take lives like ghosts, but every crime inevitably involves an exchange of physical traces at the scene, leaving evidence behind.
