The film tells a duel between a serial killer who takes killing as a pleasure in life and Lee Byunghun who is determined to avenge his dead fiancee. Zhu Yan, Xiuxuan (Lee Byunghun)' s fiancee, a policeman of the National Defense College, was brutally killed. Xiuxuan blames herself for not protecting the most important person. Angry, he vowed to take the most painful revenge on the murderer. Xiuxuan learns that the serial killer Zhang Qingzhe (Cui Minzhi) is the murderer and begins to impose cruel punishment, but the murderer Zhang Qingzhe is more cruel than the devil. Before killing Zhu Yan, Zhang Qingzhe was already a wanted serial murderer, but because he was more ferocious than ordinary murderers and enjoyed the killing process very much, Jin Xiuxuan met his biggest opponent and they launched the most wonderful chase.