A businessman mysteriously wakes up in an open-air prison cell with only an old grist mill. Forced to work as a beast of burden, he must find a way to escape before the birth of his child.
PHILLP(马德钟饰)是一名注册牙医，他有一种特殊的癖好，就是欲征服所有穿着制服的女性，如女警、童军、护士等。遇有不服从者，皆将其杀死。当中的一名受害者，更被弃尸于大支港(吴镇宇饰)的私家车旁，港因而被带回警署问话。港对警花宝文(朱茵饰)产生好感，决心将其追上手，而宝文之妹宝珍(钟真饰)与同学PETER往看牙医，刚巧是到PHILLP之诊所， PHILLP得知了珍的一切资料，欲侵犯珍，珍作出反抗，却被PHILLP 杀死，并制造假象，嫁祸于PETER仔。宝文对妹妹之死存有疑惑，不断追查其妹的死因，更以自己的肉体做饵布局追凶……
