When her father files bankruptcy and then dies, Rose's fiancé jilts her; she takes a job as a maid in a Montmartre kindergarten with 150 poor children. Rose gives each child loving attention, and soon she's their favorite. An especially needy child is Marie, a prostitute's daughter. Rose and she bond, and Marie is jealous of all attentions paid Rose, especially those of Dr. Libois, the school's physician. When Rose inadvertently guides the children through the educational experiment of a visiting scholar, and then discloses she has a college degree and is working beneath her station, the principal wants to fire her. Is there any way she can stay? And what will happen to Marie?

In a luxury hotel, a gathering of foreign high society people attend a wedding lunch. By the end of the feast a dramatic turn of events occurs : on the time of leaving the groom realizes that his newly married wife has... disappeared ! One morning, some time later, he meets her again at the Bois de Boulogne. She tells him everything about her strange attitude: she needed to be married to be able to have access to her husband's money. With this money, she managed to avenge her mother.

Philémon, a wealthy dilettante, is going to do his military service in the provinces under the authority of a colonel friend of his father. Lucien, a lieutenant and Jeanne, the colonel's daughter, are secretly in love with each other; but the colonel plans for his daughter a marriage with Philemon. In the meantime, Folette de Saint-Pageot, a coquette, arrives in the village to claim money from the colonel, while also coveting that of Philémon. To protect himself, the colonel makes Folette pass for Lucien's fiancée. Out of spite, Jeanne decides to marry Philémon. They all find themselves in Folette's room, where they have a frank explanation which clarifies all their links. The lieutenant will marry Jeanne, and Folette will be maintained by Philémon.

Léon is hired by a detective agency to monitor a music hall star whose friend is extremely jealous.

Alcide Darbois, a small-time garage owner, and his sister Ursule come into a fabulous inheritance and become powerful industrialists. The cars they make a re very successful on the French market. Now a bit of a snob, Alcide decides to marry his daughter Suzanne to Marquis Gaëtan de la Michodière, but the young lady is actually in love with Bégonia, her father's chief worker. A car racing event will resolve the situation.

The tumultuous relationship between a street singer and a prince.

Well-to-do Simone replaces her music-hall friend Yahne when her wealthy uncle visits from America.

Robert de Houdan is indecisiveness itself. He keeps hesitating, shilly-shallying and never reach any decision in any way. So much so that he finds himself on the verge of ruin and falls prey to Boucherot, a greedy loan-shark who puts pressure on him to marry Yvonne Herbelier. Boucherot is assisted in his undertaking by baroness Pépin, a typical matchmaker. But Robert, who does not know the young lady, shies away from her.