After thwarting a crucial arrest, Amélia Delcourt, 32, who has just been promoted to the criminal brigade, finds herself ousted from the investigation into Shakespeare, a serial killer who has been active for ten years. When Juliette, 17, disappears, Amélia, convinced that it is a kidnapping, continues the investigation clandestinely. While visiting the teenager's parents, she meets Daniel Hansen, a famous media profiler who has fallen, who is already on the trail...