|Fanny Ardant||Judith Ralitzer|
|Zinedine Soualem||The Commissioner|
|Myriam Boyer||Huguette's Mother|
|Boris Ventura Diaz||Alain|
Confusion reigns when police officers storm the office of novelist Judith Ralitzer and drag her into the station for questioning. The officers point out disturbing similarities between Judith's popular mysteries and the crimes of an active serial killer known as ''The Magician.'' Meanwhile, a young woman abandoned by her fiancé, finds her family suddenly ensnared in the twisted web of intrigue surrounding a man who claims he is Ralitzer's ghostwriter.