When a brutally murdered man is found hanging in a theatre, Detective Sergeant Rex King becomes obsessed with the case. Who is this anonymous corpse, and why has he been ritually mutilated? But as Rex explores the crime scene further, the mystery deepens, and he finds himself confronting his own secret history instead. Who, more importantly, is Rex King? Shifting between Holborn Police Station, an abandoned village in rural 1980s France, and Stonehenge's Battle of the Beanfield, 'The Fountain in the Forest' transforms the traditional crime narrative into something dizzyingly unique.