It's a Lars Von Trier experimental horror film so you know it's gonna be messed up — but Antichrist also received a lot of critical acclaim when it was released in 2009. It's about a couple who loses their child and retreats to a cabin in the woods to grieve. Before long, he (Willem Dafoe) is seeing things and she (Charlotte Gainsbourg) is getting sexually violent. Lots of controversy around this one!
Watch it here