In the beautiful family home, Frédéric, Adrienne, Jérémie and their children are celebrating the 75th birthday of their mother, Hélène Berthier, who has devoted her entire life to preserving the work of their uncle, the painter Paul Berthier. Hélène's sudden death a few months later forces them to come face to face with the burdens of the past. Can this seemingly happy family stay together?