Barbarian

This is the sort of horror movie that's best to go into almost clueless. If you prefer it that way, just know this: Jesus Christ, it's terrifying. And funny.

In Barbarian, you won’t know what’s coming from one minute to the next, but you’ll almost certainly come out eager to see what Cregger does next. He’s using your horror knowledge against you by rarely giving you what the genre has conditioned you to anticipate. Take someone who won’t shout at/sue/divorce you if you crush their hand to mush in fear.