"Don't go."
I like Satan. As far as imaginary characters go, I think he's pretty cool. He ranks right up there with Kermit the Frog and Menlo Schwartzer.
Two young ladies, for different reasons, have to stay a few extra days at their all-girl boarding school during the winter break. Things go okay during the first night, well...except for the demon sighting and the Satan worshiping in the basement (or as I like to call it: Thursday), but after that things get pretty crunk.
If you're looking for a ballz to the wall gorefest, then keep looking, but if you're down for a slow-moving, thought provoking and thoroughly entertaining dark tale, then THE BLACKCOAT'S DAUGHTER should keep you happy. There's not any nudity or excessive amounts of blood, but the story is definitely fucked up! I loved the ending. The music was awesome also. It really fit the film.
Double-feature with Kubrick's THE SHINING.
Fun fact: the boarding school the girls go to, Bramford, shares the same name as the apartment building in ROSEMARY'S BABY.