Antoine was raised into the easy life by his very rich grandfather. After the death of his grandfather the money has gone and Antoine falls under the influence of various easy people.
从小，方托马斯（让•马莱 Jean Marais 饰）就爱搞恶作剧。不过，死对头瑞夫警长（路易•德•菲耐斯 Louis de Funès 饰）一直希望抓他归案。为了给后者一个下马威，方托马斯绑架了科学家马尔尚。记者方尔多和未婚妻艾莱娜报道了此事。罗马科学大会即将召开，为了防止方托马斯前来捣乱，瑞夫警长率领手下开始了声势浩大的搜捕行动。在列车上…
