She was a married woman, torn apart from her husband. He was an innocent schoolboy on the verge of manhood. While the world was at war, they found comfort in each others arms and shared an impossible love that couldn't possibly continue... and an uncontrollable passion that they could not resist.

In France during World War I, Marthe waits for her husband, Jacques, while he fights on the front lines. Marthe then begins a tempestuous affair with 17-year-old François, with whom she had a dalliance before marrying Jacques. Jealous François struggles with the fact that Marthe is married, while she tries to prove her devotion to her young, hotheaded lover. Things become even more complex when Marthe becomes pregnant with Jacques' baby.

An Italian high school student becomes infatuated with a woman he sees outside his class window. Her fiancée is in jail for being involved in a radical movement, and she spends much time in court providing moral support. At first she resists the student's advances, but eventually begins an affair with him. Their situation is condemned by her family and his father, who is the woman's psychologist.

Nobles try desperately to cling to the crumbling aristocracy in the days following World War I. The Count (Jean-Claude Brialy) and his Countess Mahe (Sylvia Fennec) delight in throwing lavish costume balls. The couple develops a friendship with a young boy who delights in the parties thrown by the noble couple. Love soon blooms between the Countess and the boy as she searches for something more than a string of endless parties and social affairs. The masquerades are an attempt to freeze time and hold on to the nostalgia of a bygone era. For fear of losing her, the Count allows the Countess to continue her love affair.

A high school boy with violent impulsive tendencies begins a troubled relationship with an older woman he sees at a funeral.