An outer suburb of Paris, 1972. Gilles and Christine, both sixteen, are classmates and lovers who have become frustrated with the aloofness of their families and the general monotony of their lives. When the pair are caught shoplifting, Christine's father ships her off to a home for emotionally disturbed children, temporarily putting space between her and Gilles. Luckily for them, though, she escapes and the couple contemplate running away together.

Lola is an independent woman, a professional writer with 2 men on a string. Both men are married with children. When the men, and Lola, face having to make choices, Lola's comfortable life becomes less appealing.

Martine is 25. Since breaking up with François, she has the feeling that the world is caving in on her. Between small jobs and one-night stands, she can't seem to get a fix on herself. In desperation, after a last quarrel with François, she unintentionally causes an accident that leads her to the emergency ward of a psychiatric hospital. During her brief stay, she unexpectedly sparks into life. She takes an interest in two young patients, Pierre and Anne, convinced that she is doing the right thing in supervising their love life...