Monsieur Benoit's existence is transformed when his dour wife suddenly thinks in a bout of folly that she will become a chanteuse and her husband the impresario.

Muichkine, a young Russian prince, returns home to St. Petersburg from a mental institution, determined to spread decency and kindness in the harsh and cruel world. He becomes betrothed to an innocent young girl while trying to save a less-innocent woman from her own travail, but jealousy and his own naivete conjoin to bring about unimaginable tragedy.

Mimile is a street singer and also a very inventive free rider. With his friend Georges, a musician in the same orchestra, they meet Arlette Sicleton and Lulu. Arlette is the sister of Sicleton, a sports event organizer and Lulu is the daughter of Ledoux, the supervisor in charge of tracking down free riders. After many misunderstandings, love will triumph.

Naive and good-hearted Léon Ménard arrives in Paris, determined to find work in the capital. In a café, he meets Bob, a seedy guy, who helps him to get a job. On cloud nine, the ingenuous young man, does is unaware of how Bob manipulates him. Having become the night concierge of a hotel, the thankful Léon lets Bob and his accomplices get into the pace. Jewels are stolen as a result.When he is accused, Leon refuses to incriminate his "friend". Fortunately, Charlotte, Léon's fiancé, manages to find evidence of Bob's guilt and thanks to a premium paid by the diamond dealer the two lovebirds can buy a grocer's shop and tie the knot.

Portrait of a two-faced man. By day he is rich, brilliant and respectable financial officer Lussac; at night, he becomes "Mirror", a ruthless gang leader in Marseilles.

Kohlman, the attorney for the Fournil bank, diverts money from the institution. To hide his malpractices, he imagines to remove the director, the young and overconfident Clement Fournil, during a cruise at sea on the yacht Emile Frechisse.

The evocation of Paris in the 1920s mingles with the rapid rise of the irresistible Caprice, a talented singer, and her tumultuous love affair with Jeff the composer. A photographer nicknamed Bagnolet, a gentle anarchist, gently monitors the activities of Caprice, who has become Lady Paname and, in the absence of morality, makes love triumph.

Christine, the daughter of a rich American, acquires from her father the jazz band of Ray Ventura who will be made responsible for accompanying her from morning till evening wherever she goes. From an endless number of amusing situations, the fiancée of the girl despairs. But soon the musicians rebel in in the face of the requirements of their patroness. More than a job, it is for them misery. Christine excuses them and she goes back to America with her band. Things go bad, degenerate, but the kindness of the musicians and the firmness of the fiancée of Christine really quiet down the moods of the young woman .

Robert Bobin has been an assistant accountant for twenty years now and, although meek and obedient, is getting weary of his monotonous, limited life. He tries marriage but, unfortunately, Blanche, the nurse he marries, proves to be a shrew. One day, a miracle happens : Michèle, a young orphan and fellow-worker gradually develops tender feelings for him. But will Robert be able to overcome his mediocrity and grasp this unexpected opportunity to find happiness?

The romantic life of the head of a bandit gang, wanted by the police. Cartouche gets away with being deported to Louisiana after unmasking a plot by a Duke against the throne.