Irene (Audrey Tautou) is a con artist working to bilk naive men out of millions on the French Riviera. When she sets her sights on Jean (Gad Elmaleh), she thinks she's hit the jackpot. However, when she discovers that her mark is just a lowly hotel worker she's mistaken to be a millionaire, she goes in search of bigger prey. But Jean can't get Irene out of his mind, so he starts his own elaborate con game to trick her into falling in love with him.