Satan's Castle (1975)

Four adventurers become trapped in Magnet Mountain's abandoned Castle of Satan. To escape the citadel's strange and terrible demonic attacks, they flee into a deep underground labyrinth. Here they discover a vast subterranean kingdom peopled by bat-winged beasts & devils whose hierarchy is headed by King Satan himself! To save their souls the adventurers must assist Satan's minions to infiltrate the mortal world above - but a clever stratagem foils the plan!

Released Jan. 1, 1975 104 min 11+

Genres: Adventure, Horror

Keywords: imdb.supernatural-power, imdb.psychotronic-film, imdb.adventurer, imdb.castle, imdb.labyrinth, imdb.trapped, imdb.reference-to-satan + 6 more, imdb.demon, imdb.creature, imdb.secret-kingdom, imdb.bat-creature, imdb.occult, imdb.independent-film