The film is adapted from a true story, and the theme is taken from 1994 the floating corpse murder case in Hong Kong West. It tells the story of a headless female corpse whose limbs were sawed off near Westport. Although inspector Ou Zhenqiu of the Major Crimes Unit has cracked many difficult cases, he feels helpless about this headless floating corpse murder case.
A few days later, Li Weimin, the owner of the restaurant, hasn't seen his wife for a long time. He looked everywhere and reported to the police. Tell Ou Zhen the inside story about the disagreement between his wife Yan and her brother. When Ou Zhenqiu happened to urinate in Li Weimin's home, he accidentally found some blood, which became Ding Dianer's clue to solve the case. After tracing, he finally exposed an uncle and sister-in-law tragedy. ...