Twelve years after spending an unforgettable vacation there, Marielle and her sister Colombe return in winter to the house of their friend Jeanne, who has recently committed suicide. At her funeral they meet Pascal, the neighbour with whom Jeanne was madly in love, and his daughter Léo, who is now twenty years old.
In a game of mirrors, where present and past echo each other, these people, who find themselves together after so many years, try to understand why Jeanne ended her days. They discover that they each have a part of responsibility in her death.