Laurent (Alain Chabat) thought he knew his wife, Loli (Victoria Abril), quite well. Chronically unfaithful, Laurent believes Loli is happy and will be hurt by news of his infidelities. But when a truck breaks down in front of their home and its owner, a female plumber (Josiane Balasko, who also directs), asks to use the phone, Laurent discovers that he and his wife have something in common: a sexual attraction to women.