The mistress of a wealthy man misses material comforts when she leaves him for a younger lover.

Two physicians, one old and one young, fall in love with the same woman, Juliette, a quixotic hairdresser. First, she is with Raoul, the older one; then passion for Clément, the younger doctor, takes over. Raoul fights back, playing on Clément's guilt and Juliette's lack of self-assurance; then, Clément makes his case to Juliette, abandons his fiancée, and takes her to the provinces where he sets up practice and asks her to have a baby. She panics and abruptly leaves Clément, taking up with Raoul again. When she contracts Hodgkin's disease and the treatment does no good, Raoul believes she has the malady of love. Is there a cure?

In Belle Époque Paris, a 19th-century Parisian aristocrat falls in love with a lower-class prostitute who seduces him but never loves him.

Lisa, a fashion photographer, has an affair with a married man. They both know that the relationship forces them to have fun. When he goes through a delicate family situation caused by his daughter's adventure with a much older man, Lisa understands how much she is in love and how little she can expect from him.

A network of spies affects the lives of people in and out of the organization in this espionage drama. Dominique is the neglected wife of a spy who tracks him down at a Paris antique shop. Finding him with a female spy, the enraged wife shoots both of them. Dominique hides out on a boat while the police investigate the murders, and international spies scramble to recover some missing microfilm. Helen is the spy boss who orders a hit man to go after Dominique.