Crooked House is a supernatural drama mini-series which aired on BBC Four in December 2008. The three-part series was broadcast on consecutive nights from 22 to 24 December 2008. It was written and co-produced by actor and writer Mark Gatiss, who found fame in the BBC series The League of Gentlemen. The three linked episodes form an anthology story, influenced by the writings of M. R. James and Amicus horror movies, and a Māori death-mask belonging to Gatiss. They concern the ghostly secrets of fictional Geap Manor, a recently demolished Tudor mansion.