Two young girls meet, Reinette from the countryside and Mirabelle from Paris, and decide to take a flat together in Paris where they attend University. Four successive stories about their daily lives illustrate the very different views, characters and relation to the world of these two friends.

Marion is about to divorce from her husband and takes her 15-year-old niece, Pauline, on a vacation to Granville. There, she meets an old love...