Written by the director together with Olivier Assayas (nominated for the César Award for Best Screenplay in 1986 for Rendez-vous and in 2015 for Clouds of Sils Maria [+]), the screenplay is an adaptation of Delphine de Vigan’s novel of the same name, which depicts a woman taking ownership of another woman’s life, much like a Hitchcockian thriller. The plot of the book revolves around a novelist who has just had a hugely successful book published. However, she feels uncomfortable about the consequences of her newfound fame and meets a woman who works as a biography ghost-writer. While their relationship is initially amicable, it soon starts to transform as this manipulative, predatory character takes control of the author’s life.