Wanting to complete the research of her doctor husband, a former actress returns to the stage and therefore abandons her home. Badly supervised, her little boy runs away. We find him ill in the Alps. He is saved by his father and the parents' union is sealed again.

The struggles of a small business owner come to light in this film by director André Cayatte. The proprietor of a fabric shop, M. Baudu faces stiff competition when a department store moves in across the street, the first of its kind in 1860s Paris. On top of the stresses associated with the rival retailer, Baudu’s niece and two nephews take up residence with him after recently being orphaned. The niece, Denise Baudu, sees the writing on the wall for her uncle’s business so she takes a job as a shop girl with his competitor and despite her success the decision does not register well with the family.

A detective uncovers a crime. The suspects are numerous and it will take all the insight of a journalist to discover the culprit.

Commissioner Thomas simultaneously investigates the actions of an oil company, a theft and an assassination, and the kidnapping of a child with look-alikes.

Sherlock Coco, famous detective, tries to thwart the machiavellian plans of the trio of shock. Croquignol, Ribouldingue and Filochard must be extra vigilant, but the profit motive is too strong. As a corollary, the famous pink diamond is also of interest to their legendary enemy, Jo Papillon. But always inventive, they will work out multiple scams and tricks to reach their goals.

A pilot, hero of the war, finds himself implicated in spite of himself in a traffic. He is wanted by the police, but his former companions and an air hostess will help him prove his innocence.

In a small village, an abbot tries to take lightly the jokes of three men, recalcitrant to religion.

A young man leads a happy life in Paris, while making his aunt believe that he is continuing his studies, while she supports him financially.

A chronicle of the life of Bertrand du Guesclin, grand officer of the French army in the 14th century.

Gaston wants more than anything to marry the naive Simone. But where he is, there is Sidonie, a local singer romantically pursued by the police commissionaire.