In 1947, the singer Édith Piaf and the boxer Marcel Cerdan are both at the peak of their respective careers. Their encounter gives birth to a passionate love affair lasting some two years, cut short by Cerdan's death in an air crash.
Deux histoires d'amour en parallèle : celle, célèbre, de la chanteuse d'Édith Piaf et du boxeur Marcel Cerdan, et celle, moins spectaculaire, de Margot de Villedieu et Jacques Barbier.