Mercenary thief Laure Ash (Rebecca Romijn) participates in a diamond heist in Cannes Film Festival. The plan is for Laure to steal valuable diamonds from the ensemble of a female attendant named Veronica (Rie Rasmussen) while in the middle of seducing her, during which her accomplices "Black Tie" (Eriq Ebouaney) and Racine (Édouard Montrouge) provide various support. However, Laure instead double-crosses her accomplices and escapes to Paris with the diamonds. In Paris, a series of events causes Laure to be mistaken for her own doppelgänger, a missing Parisian woman named "Lily" (also portrayed by Romijn) who had recently disappeared. While Laure luxuriates in a tub in Lily's home, the real Lily returns and commits suicide while Laure secretly watches, providing Laure the opportunity to take her identity for good, and she leaves the country for United States.