The tale begins when François Pignon, (Gad Elmaleh) a restaurant car service valet at a posh Paris hotel gets caught-up in a billionaire industrialist’s sneaky infidelities. Veber’s plot quickly turns on the fall guy, when Francois - an innocent passerby - is photographed by a paparazzo leaving the hotel along with Pierre Levasseur (Daniel Auteuil), the wealthy tycoon and his beautiful supermodel mistress Elena (Alice Taglioni).