Zachisaserialwomanizerandaconman,whoonedayfallsforagirlnamedLiLing.Shemakesthebestporkribsoup(thefilmstitleisCantonesefornicesoup).However,soupisnotenoughtokeepZachfaithful.HesoonfallsforLiLingsyoungersister,LiEr,anattractiveandgorgeousyounglady.TheystartanaffairbehindLiLingsback.ThingsarenotassimpleastheyseemwhenLiErtriestoconvinceZachtomurderheroldersister.