An exclusive documentary on a leading artist in the French music scene: Mylène Farmer. From her first album, "Cendres de Lune," to "Interstellaires," which went straight to number one, the singer has become the symbol of an entire generation. This documentary traces the 30-year career of this artist, who cultivates mystery around her life, through archives and previously unseen testimonials from those close to her. Absent from the media scene but very close to her audience, we will attempt to understand how the myth surrounding this atypical artist was built.