This is a ghost film set in the struggle between police and robbers. The film tells the story that Gao Tianjin, a policeman, was chased by Sha Youyou, a former colleague and subordinate, for allegedly colluding with the underworld to smuggle arms. In the pursuit of both sides, the two could not bear to shoot each other because of their old positions. At this time, friend Sha Dianyou accidentally rescued female ghost Xiaolian in Bajiaolin, which solved the embarrassing dilemma for them. After consultation, it is required to hand over all the criminal information of the underworld boss within one month in order to clear the high charges. However, the police station did not agree with Sha's practice. The cousin of Sha Youyou, the deputy director of the police station, thought that Sha had been unhappy many times and was greatly dissatisfied, so he decided to send someone else to handle the case. In a rage, Shayun's friends were unhappy all day, and only female ghost Xiaolian comforted them from time to time to help them out. The two unconsciously had a long-term love, and they performed a ghost love …