五代服役于警界成男子汉家族，竟出吕方此没法传誉之后代，为家族声誉吕方成为“神秘CID”冒充警察捕罪犯，终于上得山多终遇虎，在势案中被女劫匪打死，大丈夫吕方灵魂不息，成为鬼魂誓要为己报仇，谁知负责此案的警司竟是霸王花，吕方不信女性办事能力大闹警局，与警员冯淬帆、孟海结为好友，联手查案，展开一场人鬼联手，终将匪伏法，含笑轮回而去。

An aging crime boss discovers his rebellious daughter is dating a punk. His former gang members try to bring her back using tricks and force, only to find out the punk is tied to the drug business in America, and is not to be messed with.