Constance Feistl, a student, lives in Paris with Bernard, 40 years her senior. They have a passion for music in common. For a year and a half, she rents one of the rooms left by the children, for an amount of 513 euros per month. Bernard is very caring. Retired, he was not just looking for additional income. He shares part of their daily life, and between them, a strong bond has been woven.