Dunkerque, a mysterious and austere town, is a port favourable to lover's wandering. Fred and Christophe are starting their love story. He is twenty-eight. She is thirty-seven (divorced with two children). A rather classic middle-class-looking woman She is surprised first. But she finally believes in their story. Then life returned to normal: realities appear. The man's new personality emerges: selfish, tortured, drifting off. In other words, a young man. He cannot stand to have “led his life” at a time when he wants to “live” it. She suffers. Sometimes, he leaves her brutally, then comes back ringing at her door the same night. He is sorry. In fact, the dream is over: now she is the adult, he is the adolescent. Their relationship continues though, passionate and poisoned. Until one evening too many...