In this story-within-a-story, Anna is an actress starring opposite Mike in a period piece about the forbidden love between their respective characters, Sarah and Charles. Both actors are involved in serious relationships, but the passionate nature of the script leads to an off-camera love affair as well. While attempting to maintain their composure and professionalism, Anna and Mike struggle to come to terms with their infidelity.
Diana is a Roman wife happily married to sympathetic Paolo but she is keen on playing benign games of seduction with other men while resisting the advances of chic lingerie shop owner Silvio and she narrates her adventures to Paolo in order to stimulate their otherwise monotonous sexual life.
A poor French teenage girl engages in an illicit affair with a wealthy Chinese heir in 1920s Saigon. For the first time in her young life she has control, and she wields it deftly over her besotted lover throughout a series of clandestine meetings and torrid encounters.
A German submarine hunts allied ships during the Second World War. Soon it becomes hunted itself. The crew tries to survive below the surface, while stretching both the boat and themselves to their limits.
Rémi is a man trapped in a deteriorating marriage. When his wife is unexpectedly killed in a car accident, Rémi is left with his stepdaughter, Marion, who chooses to stay with him rather than live with her birth father.