At the Victor Hugo High School, French teacher Leila Al Bachir has called a disciplinary hearing for one of her students: Simon Petit. In her quest to find a fair sanction for Simon, she realizes her workplace is in serious trouble.
Most people in this world are headless. DuSeong is a police officer; one of the few that still have a head. He takes on a sexual assault case, where both the perpetrator and the victim lose their heads. One day, he discovers his daughter has also become headless, and is faced with a choice.