Stockholm’s special investigative group has a new case: a star from a popular reality show is found murdered in a school classroom. His hands are bound, a hood is placed over his head, and a test made of school questions hangs on his back. Soon, other victims appear. The cunning and intelligent killer, unhappy that the newspapers and television talk only about stupid stars of reality shows and internet celebrities, forces his famous and wealthy victims to answer questions from the school curriculum, and if they fail—he kills them. Will Sebastian Bergman manage to put aside his own personal issues and catch the serial killer before he becomes a threat to the existence of their team?