Saint Maud, a fanatically zealous Christian girl moves in with an aging ballet dancer to care for her. Religious mania and weird supernatural shit ensue.
The Ritual, 3 friends on a hiking trip become lost in an increasingly creepy and haunted Scandinavian forest.
Suspiria (remake), a German dance academy hides a bloodthirsty coven of witches. Not nearly as visually striking as Argento's 1970s original, but MUCH more coherent as a story.