Lucie is an overly zealous teenage fan of famous pop diva Lauren Waks. Her life revolves solely around her adoration for Lauren. In order to cope with her bleak small-town life with her mother and younger brother, Lucie obsesses over the singer, covering her bedroom walls with images and posters of her mysterious, inaccessible idol. One day, a chance situation allows Lucie to meet Lauren and gain access to the star`s completely unstable life. Gradually their lives intertwine as, with near-operatic intensity, the film delves into the emotional dependency on both sides of cultual celebrity. On the one hand Lucie who uses her idol to find self-valorisation, on the other hand Lauren clutches on to her follower with monstrous avidity. Both Lucie and Lauren are rendered with complexity and realism, as the actresses base their remarkable performances on physical interpretation : body language and gestures are turned into a choregraphy. Using original music recorded by Emmanuelle Seigner herself, director Emmanuelle Bercot explores her fascination with the phenomenon of fans, their irrational behavior and desperate passion.