Murder cases in the city are frequent, and many of the victims have similarities. For this reason, the criminal police detective Xing Min (Huang Lu) and the old provincial detective Lao Zhou (Xie Gang) form a special task force to deal with serial murders. In order to solve the case, Xing Min uses herself as bait and dresses up as the next victim that the murderer wants to kill. The murderer finally surfaces, but Xing Min's life hangs by a thread.