Nicolas has an appointment with his sister Juliette. They are bound by a heavy secret of childhood: their mother committed suicide while their father had charged Nicolas to keep her. Since then, the father has chased him out and has forbidden Juliette to see Nicolas again.

Marie, the charming daughter of Italian immigrants, has a dream : to become rich. In Roubaix, where she lives, she meets and marries small-time crooner Marcel Potier. Together they leave for the South of France where they live happily but poorly. Now, Marie hasn't forgotten her hopes of wealth and with this aim still in mind she pushes Marcel into becoming the swimming instructor of Achille Zopoulos, an oil tycoon.

A man returns to the place he once lived a passionate love affair with a woman who is now dead. So powerful are the emotions that seize him that he imagines she is still alive, and begins to live as if this were the case...