Loup, thirteen years old, deaf from birth, spends his summer vacation on a campsite with his mother, Léa. They have developed an exclusive relationship that a meeting with a swimming instructor and a teenage girl will turn upside down.

1947. On a beach, Madeleine, a waitress in a hotel restaurant, mother of a little boy, meets François, a rich and cultivated student. The force of attraction that pushes them towards each other is commensurate with the secrecy that each carries. If we know what Madeleine wants to leave behind by following this young man, we discover over time, what François is desperately trying to flee by mixing Madeleine's fate with his.

Elisabeth, an actress, leads writing workshops at Necker Hospital with teenagers experiencing severe psychological distress. Through her interactions with them, she revisits her own story: her institutionalization at age 14. Little by little, the memories resurface. And with them, the discovery of theater, which one day saved her.