Stephen Graham and Owen Cooper on the set of Adolescence's first episode, which is mostly set in a police stationIf you came away from watching Netflix’s Adolescence without feeling a sense of dread about parenting your children then you’re doing well.The TV show follows the chilling case of 13-year-old Jamie, played by teen actor Owen Cooper, who is arrested on suspicion of murdering his classmate, Katie.A lot happens over the four-part series – which touches on a range of themes, from strug