Four prison inmates have been hatching a plan to literally dig out of jail when another prisoner, Claude Gaspard, is moved into their cell. They take a risk and share their plan with the newcomer. Over the course of three days, the prisoners and friends break through the concrete floor using a bed post and begin to make their way through the sewer system – yet their escape is anything but assured.

World War I aviator Carbot attempts to establish a commercial airline after the war, for the purpose of delivering the mail to the outermost regions of France.

Follenfant, father of a large family, completed late military service. He looks a lot like the commander who is shy and thanks to this resemblance, Follenfant who is also a ventriloquist, makes his superior and his own happy by marrying the widowed seamstress and mother, too, of a large family.

An outgoing deputy, put on ballot, experiences many political and marital difficulties before regaining his seat. Ultimately and without suspecting it, he owes his victory obtained by a withdrawal at the last minute, to his young wife who did not hesitate to seduce the opponent.

A young girl has left her family and lives as best she can on the generosity of her lovers. A naval officer introduces her to Toulon in a special environment which provides companions to sailors on leave. After some setbacks, she finds love and protection with a doctor who marries her.

In Paris, Jean Bourselet, a great lover of pretty women, meets the charming Madeleine, whom men are not afraid of, and whose husband is a hotelier in Vittel. Provided with a note from his doctor, Bourselet goes off to Vittel. His wife Henriette, on her guard, joins her there and discovers that her husband is pretending to be a widower to better woo his beautiful. Henriette declares herself a widow, and flirts with a man. The lesson will bear, and after a few adventures, Bourselet is delighted to find his wife.

Jacotte, a little orphan, is adopted by two single uncles who are looking for a governess for her. Monique hides that she is very rich to be hired because she is seduced by the little girl. Her father, chocolate manufacturer and competitor of the uncles, decides to sink them. But everything works out when Monique marries one of the brothers.

Mr. Pontbichot has long dreamed of cheating on his wife. To achieve his goals, he looks for a son-in-law who could help him, and finds him in the person of a young painter, who pleases his daughter.

The brave Monsieur Breloque has a friend, Pierre Martel, a private detective. When the latter asks him to replace him for a while, Breloque, although having no competence in the matter, accepts. He anticipates adventures and misadventures but also happy surprises.

Pozdnycheff, a young party animal, destroyed by his lightness the marital happiness of one of his childhood friends who committed suicide. Since then, he is haunted by the memory.