Just to be clear, "Tag" (2015) is NOT the hilarious comedy about a group of men who've played a single game of Tag for years on end (That's "Tag" (2018)!). Nope, this Japanese film is... not that. Definitely. Hope you're a fan of both gore and confusion.
"The Endless" (2018) ... well, I could make jokes based on the premise, but why spoil something amazing? It's about two guys who go back to visit the cult that they escaped from in their youth. A must-watch. For real, even if you don't like scary movies (this is not very scary), and even if you watch nothing else we do this month, don't miss The Endless! And watch before listening, of course!