Jean (Gad Elmaleh), a waiter/barman at a luxury hotel, is mistaken to be a millionaire by Irène (Audrey Tautou), a gold digger who convinces wealthy men to fund her lavish lifestyle in exchange for companionship and sex. Irène's elderly lover gets drunk and falls asleep on her birthday, so she goes to the bar in the hotel where she and Jean meet. After making her several impressive cocktails, they retire, tipsy, to the hotel's Imperial suite where they spend the night together. In the morning, Jean awakens to find Irène has gone.