Family is hell—the literal hell—in Hereditary (2008). Writer/director Ari Aster brings the full bravura with this unrelentingly tense and profoundly disturbing generator of hard-R nightmares. It’s is also funny, if you can believe it, with gallows humor that’s as gallows as it gets, but the horror comes first, and it’s for real. The movie scared my living daylights out. Watch it in a packed house.