Mikado and Laetitia meet at 16 in a juvenile home and fall in love. When Laetitia becomes pregnant, they decide to flee for fear that their baby will be taken away. When their engine breaks down, they move in for the summer with Vincent, a teacher who lives alone with his daughter. It's the start of an enchanted interlude that could also upset the balance of the whole family as Nuage, the eldest daughter, starts to dream of a normal life…