This chapter provides an overview of Folk Horror. The term ‘Folk Horror’ seems to have been coined by one of the genre's true proprietors, director Piers Haggard. In an interview, he suggests that he was ‘trying to make a folk horror film, I suppose’ when discussing the ideas behind his key film, The Blood on Satan's Claw (1971). From henceforward, the term has spun down several alleyways which only seem to marginally touch upon its descriptive character; where the re-appropriation of past culture, even that which is still within living memory, now attains a folkloric guise and becomes ascribed as Folk Horror. With this, Folk Horror in all types of media can be considered a channelling of any of the following formal ideas: a work that uses folklore, either aesthetically or thematically, to imbue itself with a sense of the arcane for eerie, uncanny, or horrific purposes; a work that presents a clash between such arcania and its presence within close proximity to some form of modernity, often within social parameters; or a work which creates its own folklore through various forms of popular conscious memory, even when it is young in comparison to more typical folkloric and antiquarian artefacts of the same character.