The teacher, Paweł Zawadzki (Maciej Stuhr), is forced to work in one of the prestigious high schools in Wrocław. Even the events of his first few days at his new school shock him. Tragedy strikes in high school. There are a million unanswered questions. One thing is clear: there is a murderous game going on in the high school. This is not a school like any other. These are not ordinary students, and Belfer was not there by accident.