The Devil’s Nightmare (1971, Jean Brismée)

Nazi baroness dies giving birth in bombarded Berlin, the movie unconvincingly marrying perfect interiors with very rough stock footage. The baby is murdered, then in color the present-day baron speaks of a family curse, and a dirt-digging reporter gets her car pitchforked and runs headlong into the woods.

From here out, it’s your traditional story of a busload of people arriving at a haunted castle then getting killed one-by-one by a hot succubus in a revealing black dress, while the alchemist baron and his butler gradually parse out secrets. Not a generically bad horror movie though – it’s pretty much excellent from start to finish, including the ending where the devil deals with a priest to trade his soul for the bus people, then they all awaken and immediately die in a fiery bus crash.

Mouseover to manifest a succubus:
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Brismée’s only feature, unfortunately! The writers made some 70’s porn, and this script was remade in 2012 by some low-budge Massachusetts residents. Rififi star Jean Servais plays the baron, Erika Blanc (The Night Evelyn Came Out of the Grave) the succubus, and Daniel Emilfork (OMG, Krank from City of Lost Children) the devil.

Naughty Krank: