Hag
Inspired by true events. Scott Somers mysteriously experiences sleep paralysis when his wife Marie sleepwalks at night. Unbeknownst to him, she lives with a horrible secret that slowly begins to eat away at their relationship.
Starring
Watch "Hag" on Amazon released in 2014. It's a horror and thriller movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.