 A two-timing bigamist, played by Chow Yun-Fat, finds himself concocting scheme after scheme with his best friend, Waise Lee Chi Hung, to prevent either of his wives from discovering his bigamy. The unwanted intervention of a police officer (Kent Cheng) as well as a series of unfortunate events lead to the wives (Joey Wong, Sally Yeh) discovery of the whole plot. They team up with Chi Hung s exasperated fiancee, Carrie Ng Ka Lai, to exact revenge upon the two men.