André Bertoux

The film tells the story of Frau Conch, a "fille perdue", a lost girl with no feelings or scruples, toying with men as she pleases. These are the kind of wicked girls that usually are invited to enjoy the soirées at the Schloss. She is without mercy, respect or loyalty.

The life in Morocco of an officer of the Foreign Legion, Colonel de Joyeuse.

In the 13th century, lovers hurried to the door of Marguerite de Bourgogne. The aristocrat who every day was indulged in orgies that were famous throughout the country. What the suitors do not know is that they will inevitably be executed the day after these festivities and thrown to the Seine.

Reymat is killed during an aerobatic exhibition in a plane. Hélène, his fiancée, to forget her grief, decides to become an aviator.

Lucien, a modest engineering student, discovers that his steady girl friend Mireille is using him to cover up her dates with Mario, an older man. Lucien wanders about the streets of Paris and meets Joëlle, a sophisticated teenager who supports herself with a job in a sleazy nightclub. It is late when they meet, and Joëlle invites Lucien into the club and demonstrates her stripping act to her one-man audience. A feeling of rapport develops as they go from place to place seeking entertainment; in the morning the two discover they have fallen in love. Mireille learns of the romance and, on a bet, plots with Philippe and other friends to break up the affair. Neither Lucien nor Joëlle, however, succumbs to the propositions of Mireille and Philippe. Later at a nightclub, Mario gives the appearance of seducing Joëlle. Enraged, Lucien rushes at him and they fight. Lucien is reunited with Joëlle--he has learned of the complexities of love, and she has acquired from him a sense of stability.