On holiday at a camp-site, Camille (17) finds herself bored as she hangs around waiting for Fred, her boyfriend, who works at the bar. She ends up meeting Blaise (40), a sailing instructor whose personality is similar to hers despite the age difference. The complicity between them, laced with a sort of hatred for life, is soon the subject of rumors, and Fred becomes jealous, as does Blaise’s wife who arrives at the camp-site, demanding explanations. But the lovers are determined to go all out to continue this intense affair until the end of the summer, planning to kill themselves.