When Nina finds out that her teenage son Lars has been injured in an accident at school, she is faced with a dilemma: Can she leave behind the rehearsals with her orchestra in order to be there completely for him. The decision she makes is a compromise: for five days, she will leave Munich to take Lars on a getaway, to the island in western France. In the small house on the beach, mother and son are forced to face each other. Misunderstandings multiply, suppositions turn into suspicious: Was Lars a witness to a gruesome crime at school? Did he even participate in it? When a winter storm cuts the last connection to the mainland, a dangerous confrontation ensues.