Gaston Villaret ,a lady killer who's got many a mistress (one of them being particularly jealous) ,saves a girl,Lucie, who wanted to commit suicide ,cause her boss she is in love with has just fired her (because ,he tells his mother,"I wanted to marry her ,but I could not marry my secretary ,so I had to dismiss her!"). Lucie turns the house of chic dandy Gaston upside down!She's really a nuisance to live with at home and one wonders why this man -who anyway could be her father- wants to marry her .