A businessman is nicknamed "L'avvocato" and his driver, Oscar, is a yes-man. When L'avvocato has a crash while driving his car, Oscar is put in jail in his place. When Oscar gets out, he finds himself married to the beautiful Maria, but he can't even touch her: she is l'avvocato's lover. Afterwards Oscar is appointed manager, but he can't manage a dime. At the end he shall find himself again in jail, hoping that his "sissignore" (yessir) will let him have, sometime, a driver to send to prison in his place. —

故事发生在上世纪七十年代的意大利米兰，马里奥（乌戈·托尼亚齐 Ugo Tognazzi 饰）是一个非常成功的律师，同时拥有一个美丽的妻子弗朗西斯（艾德薇姬·芬妮齐 Edwige Fenech 饰）。夫妻两人是活跃在米兰社交场上的常青树，拥有非常良好而又广泛的人际关系。马里奥和弗朗西斯看似恩爱，但实际上，一个古怪的念头常年困扰着马里奥，那就是他总觉得自己的妻子会背叛自己红杏出墙。 每当看见妻子和别的男人聊天时，马里奥的内心里都会感到深深的煎熬，虽然知道妻子是清白的，但他无法抑制自己的想法和冲动。直到有一天，马里奥真的发现一个年轻人藏在他的公寓里。