Brigitte is preparing for the role of the famous French singer Barbara. The actress carefully studies the character, gestures, manners, and intonations. She learns the music scores, mimics her facial expression, but, as Brigitte does and more and more of it, she gradually merges with the character. The director, Yves, is also preparing to shoot the film: he studies archival footage and painstakingly selects the music. Yves wants to recreate every detail exactly as it was, including Barbara's apartment décor, to make her come alive again, whereas Brigitte's motivations for transforming herself are unclear. He is inspired and even possessed - but with Barbara or with her new incarnation?