• The Killing of a Sacred Deer which feels very inspired by Funny Games.
• Beau is Afraid one of the most anxiety-inducing films I've ever seen. Might've just me though, the weirdness made me very uneasy.
• Be My Cat: A Film For Anne which I recently found about and was surprised by how much I liked it.

Someone already mentioned it, but Man Bites Dog fits the category really well and is a very interesting watch.