A mysterious woman, dressed in black and carrying a small suitcase, arrives in Nice and tries in vain to get a job in a luxury goods shop. She ends up in a plush hotel where a solitary middle-aged man, engages her to be his companion. They introduce themselves - she is Charlotte, he is Paul. Both are reluctant to talk about their past; both need someone to make their present predicament more tolerable. Unbeknownst to either of them, Charlotte is being followed by another man, who seems intent on revenge...