How Robert, who does not manage to impose himself in the representation, sees his life turned upside down when he begins a career as a street vendor, which, thanks to his resourcefulness, turns out to be more and more brilliant.
Nicole, a spirited lawyer, must defend, for her debut in the courtroom, the accused Panoyau. It is a failure, the death sentence. Furious, Nicole proclaims to Claude, her fiance, that the marriage is canceled as long as Panoyau is threatened. Claude manages to steal the guillotine and the couple go on a trip and discover the real assassin.
Henri, a basically honest fellow, accepts to work for a gang of burglars only to revenge himself on Fournier-Salville, a wealthy businessman who once ruined him. His role will be to become Fournier-Saville's majordomo and at the same time to inform the burglars so as to facilitate their work. But once in the house he performs his task so well and so stylishly that he becomes indispensable. Moreover, Eve, the businessman's capricious daughter, does not remain insensible to his charms.
Robert Montfort, happily married to Solange, is his parents-in-law's pet aversion though. To them he is a punk, a good for nothing, a small-time, untalented poet! Robert, who is more gifted than what they think, manages, following a workmate's recommendation, to debut as an entertainer in a nightclub and -even better- to please the audience. Not daring tell the truth to Solange he starts leading a double life, being Robert Montfort in the daytime and Jean Rigobert at night. Of course his wife wonders what is going on and worries about his regular night outings. Only too happy, her parents incite her to have a divorce. Fortunately, all comes right in the end.
Gaston, nicknamed Pilou, has left his native village and Yvette, the girl of his heart, to go to Paris where he has found work as a painter. He is a naive good-natured man who, like most of his fellow-workers, favors a little song or two while he works. For the time being he is busy repainting the exterior of a block of flats and, when he does not sing to pass the time, he looks through the windows, observing the tenants in their daily lives. As time goes by, he goes as far as intervening and changing the course of their lives. In the end, despite having found a lookalike of his fiancée, he returns to her.
