Felicie and Charles have a whirlwind holiday romance. Due to a mix-up on addresses they lose contact, and five years later at Christmas-time Felicie is living with her mother in a cold Paris with a daughter as a reminder of that long-ago summer. For male companionship she oscillates between hairdresser Maxence and the intellectual Loic, but seems unable to commit to either as the memory of Charles and what might have been hangs over everything.
A student is devastated when he finds that his girlfriend is cheating on him. In order to find out why she did it, he decides to spy on her and her airline pilot lover. Then he sees the pilot with a blonde woman and he begins to follow them…
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.
