最近，城里发生了数十起案情十分恶劣的连环强奸案，一个名为洛瑞斯（罗伯托·贝尼尼 Roberto Benigni 饰）的怪异男子成为了警方重点怀疑的对象，因为洛瑞斯不仅是一个公认的好色之徒，更是被抓到了许多虽不能定罪但依旧对他十分不利的把柄。 身为城中警长，派瑞德（米歇尔·布朗 Michel Blanc 饰）对只会伤害柔弱女性的罪犯深恶痛绝，他发誓无论用怎样的手段，都要找到证据将罪犯捉拿归案，当然，这其中的罪犯，指的就是洛瑞斯。为了收集证据，派瑞德甚至派出了性感美丽的女警杰西卡（尼可莱塔·布拉斯基 Nicoletta Braschi 饰）潜伏在洛瑞斯的身边，甚至不惜牺牲她的色相企图“钓鱼执法”。可是，令派瑞德没有想到的是，这一次洛瑞斯竟然节操十足，不为所动。©豆瓣A vicious serial sex killer is on the loose, and landscape gardener and shop-window outfitter Loris is the prime suspect, thanks to his unfortunate habit of getting caught in compromising situations (for which there is always a totally innocent explanation that the police fail to spot). Undercover policewoman Jessica is assigned by eccentric police psychologist Taccone to follow Loris and provide evidence for his arrest - but things don't quite go according to plan...