In the heat of summer in northern France, happy, young Juliette feels time is passing by. The only daughter of parents who are separated, she lives with her mother, Anne, an English artist who has rebuilt her life at the side of Damien, a mystic engaged in a spiritual search.

     The father lives in a caravan, and cares for her not at all. Juliette spends her time with her boyfriend Jef and his friend Michou. When Jef convinces her to deprive Michou of his virginity, she is hesitant but eventually accepts. Both lose their respect for her.

     When she meets Titi, who is from a family reputed to be fascist, she does not hesitate to go our with him, thus precipitating a virulent reaction among her family and friends. Little by little, she faces the loss of her illusions and of her dreams. The mother then becomes aware of her own responsibility for her daughter's frailty.