本片是特吕弗著名的“安托万系列”的第三部,但影迷通常忽视短片《Antoine et Colette》误将其认作第二部。 23岁的Antoine Doinel(Jean-Pierre Léaud 让-皮埃尔•李奥)从军队逃出后,虽侥幸逃脱惩罚,却因殴打警察入狱,不良记录对 他找工作造成妨碍,他先后做过旅店守门人、私家侦探等职业。过程中,安托万联系上了昔日女友克里斯汀。两人的感情暧昧而不确定。而按客户要求混进一家鞋店盯梢风情万种的老板娘时,他又将其迷上,感情的天平开始在两个女人之间摇摆。Antoine Doinel joined the army but has just been discharged. The film tells his reunion with Christine Darbon, the girl he was in love with before the beginning of the film, and his adventures in his jobs : first as a night watchman, then as a private investigator, especially during one investigation within Mr Tabard's shoes-shop... Mme Tabard is so fascinating...