Following a public humiliation in front of his classmates during a medical check-up, a boy named Aslan (13) falls ill with anankastia, a mental disease with persuasive passion for perfectionism. Aslan is a student at a high crime rate village school in Kazakhstan. The dirty criminal world of the school conflicts drastically with Aslan’s perfectionism and sense for beauty and purity. Aslan sees all the evil in the school gang leader Bolat (13), who actually caused Aslan’s humiliation. Bolat is part of the established power system at school: he collects money from younger kids bitting them up severely. Out of good motives to rid his school of crime, Aslan decides to kill Bolat...