A Dakota plane is carrying a ton of gold bound for Brazzaville, but it is hijacked over the Camargue. On arrival, we find nails instead of gold!

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.

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.

Young conductor Roberto Lombardini has never known his father who is actually a former musician, a failed piano player who has sunk into alcoholism.

Raoul Morel, a shy young man without a fortune, is an instructor at a driving school. During a lesson, he is disturbed by the ravishing and capricious Lolita Perez, the wealthy daughter of a South American who, despite her father's opposition, wants to marry a seductive adventurer, Marcel d'Arcy, who covets her fortune. At his instigation, she plans to marry Raoul - a sham marriage - in order to gain possession of his fortune. She divorces him and remarries Marcel. But Lolita falls in love with Raoul, who has been warned of her machinations and refuses the marriage...

An Alsatian, head of a section of the Gestapo, is actually spying on behalf of the French and dismantling a Nazi network. His activities are brought to light by the Germans and he owes his life only to the intervention of a young woman.

1915, in invaded Belgium, the Germans seek in vain to dismantle the organization of the smugglers of men who help volunteers to cross the Dutch border.

During the colonial period in Algeria, Sergeant Bouvard helps Broussole and his two daughters, Alise and Julie, settle in Hassi Ben Okba. Demobilized, he plants vines with them. Seduced by Julie's charms, he nevertheless marries Alise because she owns the land. He protects Julie from all her lovers but cheats on Alise with Adèle, a settler's wife. Unable to bear it any longer, he runs away with Julie to Oran. The death of his father brings him back to Bou-Okba. He stays with Alise until the day when, selling his wine in Oran, he is taken over by his passion. It is Julie who will tell him to resume married life and start a family of settlers.

Since he met Odette, Pierre thinks only of her. Every day, he calls her saying only "Hello...I love you". Then he manages to get hired in the factory where Odette works...

The whimsical Jean Latour wins a competition for a month's holiday on the Côte d'Azur. When he arrives at the "Villa Sans Souci", he discovers that the owner and generous donor, M. Mallez, is a doctor, that the property's guests are sick with nerves, and that Mallez has brought him in to entertain his neurasthenic residents.