From what I understood going into The Dead Pit, was that it was a psychological thriller. Aren’t all movies that take place in a mental hospital? It was… kind of. They make you feel like that is what the movie is for most of it, but then at the very end they drop in a bunch of monsters and splatter brain eating zombies in the background of every scene. It definitely takes a sudden left turn toward the end. The twist in the end was worth the long lag at the beginning. This movie is free on youtube if you cared to see it.