Richard, Gilles, and Philippe have been friends for almost fifty years. One summer, they set out on a cruise with their girlfriends on a magnificent yacht, heading for Corsica. But shared living on board the boat isn't always easy. Even more so given that each couple has its own problems, and the weather provides them with some major surprises. Between laughter and confessions, grievances and jalousies will rise to the surface. Everyone has to take a look at their lives and their relationships with the others. Will friendship survive the stormy weather?