French psychological thriller. Embittered by an event from the past that thwarted her musical ambitions, Mlanie (Dborah Francois) prepares to exact revenge against the person she holds responsible - distinguished concert pianist Ariane Foucherot (Catherine Frot). Masking her grudge behind a coolly professional exterior, Mlanie insinuates herself into Ariane\'s life and becomes her personal page turner, while she waits for the right moment to unleash her terrible retribution.