Kill List (2011). Ben Wheatley has revived rural horror in several of his films, and Kill List is probably the most horrifying. While its links to folk horror aren’t immediately apparent, by the end, it’s just about thrown the genre on its head.
Black Death (2010). A witch hunter investigates an isolated village suspected of using magic to escape the plague in this bruising medieval horror-drama.
Children of the Stones (1976). The most terrifying children’s series ever made, Children of the Stones is an effective mix of pagan ritual, superstition and cosmic terror, with a shriekingly disconcerting soundtrack. Possibly scarier than any other production mentioned in this article.