Early 2000s in the Welsh valleys, two best friends Len and Bambi are at the edge of adolescence. They head to a 'party' with an older guy, Jamie. It's an awkward and dark environment and they're soon confronted with the sexual attentions of men many years their senior. Doss House is a stylised drama that explores teenage girls’ experiences of friendship, early romance, and how emerging adulthood is filtered through the lens of male desire.