Following the death of his best friend, 17-year-old Shelby struggles to readjust back into life at boarding school until popular girl Lilibet decides to take him under her wing. With the aid of her reckless and wealthy group of friends, Shelby finds himself reintroduced to a fast moving world of parties, sex and drugs – but with life after school quickly approaching and his unresolved grief threatening to pull him under, Shelby finds himself dealing with a lot more than he bargained for.

Raymond Briggs' classic family story about smelly monsters, dangerous humans and what happens when the things that go bump in the night move in next door comes to life on Sky 1. Timothy Spall, Victoria Wood and Keeley Hawes star