The story of this comedy takes place in the courtyard of a house in Paris. We get to know the tenants of the building through the new keeper Antoine. They include a bicycle thief who is at the same time drug dealer, or a tenant maniac with order and cleanliness, like obsessive-compulsive disorder. Mathilde lives on the top floor, freshly retired, who try to find peace with her husband. Antoine himself was soon retired from music, through extreme gesture: he abandoned the stage in the middle of a concert, without uttering a single word. The walls of the building appears a crack at a time, which is believed to affect the integrity of the entire building, and this rift is used by the post director of metaphor: the weak point, the crack that appears in everyone’s life.