New to Paris, David is a horn player who teaches music. He meets Anne by chance and moves into her place. Her apartment doesn’t have any walls, so privacy is pretty much non-existent, but the new roommates get used to the living arrangements and develop a comfortable friendship.
Meanwhile, David falls madly in love with Julia, one of his students, while Anne develops a crush on a regular customer at the photocopy center where she works. Their respective relationships have their ups and downs, but at home, they’re able to count on each other for encouragement and support.