Yang Jiaoai, Zuo Botao, was the best partner of the Fengdu County Criminal Police Team. During a mission, he encountered a snowstorm and lost control of his car, falling into a deep ravine and both of them were seriously injured. At the critical moment, Zuo Botao shot himself and left his clothes for Yang Jiaoai to wear until dawn for rescue. One night, Zuo Botao complained to Yang Jiao in a dream that he was being brutally retaliated and tortured by the big devil who was the leader of the gang that they captured and had great martial arts skills. After experiencing a series of phenomena that appeared in real life and confirmed that this was not a dream but a real thing, Yang Jiaoai resolutely hit a monument and died. His soul returned to the underworld and Zuo Botao, the same enemy, threw the big devil into the abyss of hell.