Loulou plot
Nelly (Isabelle Huppert) a young advertising agent is married to her boss and is tired of her relationship. She is unfaithful to him with a rude, unemployed and half-criminal young loafer at a dance. Loulou, which, however, provides her with intense sexual pleasure. She moves in with him and continues to work in her husband's office until the latter refuses to support his rival. Despite their physical intimacy, the class barrier persists.