Pierre Lavasseur (Daniel Auteuil), a wealthy tycoon, faces disaster when a paparazzo snaps a picture of him with his longtime mistress (Alice Taglioni). Since Pierre's wife (Kristin Scott Thomas) owns a majority share of their corporation, Pierre must avoid a divorce at all costs. At his lawyer's suggestion, Pierre hires Francois Pignon (Gad Elmaleh), a parking attendant who is also in the photograph, to pose as his lover's "real" boyfriend and thus hide the affair from his wife.