Enter the Devil is a great American-made B horror movie. People are disappearing in the wastelands. An occult researcher discovers that a devil-worshipping cult is responsible. Her inquiries lead her into great danger. Who can she trust? Very well acted by a cast of unknowns. Gritty and atmospheric.
Leszek Teleszynski, Wojciech Pszoniak, Malgorzata Braunek
IMDB plot
During the Prussian army's invasion to Poland in 1793, a young Polish nobleman, Jakub is saved from the imprisonment by a stranger who wants in return to obtain a list of his fellow conspirators. Following his mysterious savior across the country, Jakub sees the overall chaos and moral corruption including his father's death and the betrayal of his friend who stole his fiancee. Being apparently demented by what he has seen, he commits a number of seemingly motiveless and gory killings.