Written by Jack Thorne and British actor Stephen Graham, Adolescence tells the story of 13-year-old Jamie Miller, a quiet, shy boy from a white working-class family in Yorkshire (played with haunting precision by novice actor Owen Cooper), who, one morning, is unexpectedly arrested on suspicion of the murder of his classmate, 13-year-old Katie Leonard. But unlike most shows centred around a mysterious murder, Adolescence is not a “whodunnit”, but a “whydunnit”, as Thorne describes it, and the aim of the series is to investigate the reasons why a teenage boy like Jamie brutally stabbed Katie to death.