Please do not disturb Evelyn. She already is.

Welcome to the Mountaintop Motel, a run-down place in the woods just off the county road. Meet Evelyn Chambers, the strange old woman who's been running the place ever since her release from the Arkansas State Mental Hospital. But when a violent accident flips her crazy switch, the evil voices in Evelyn's head send her on a room-to-room rampage. In the long night of slaughter that follows, a group of stranded guests will discover that is one motel where check-out time can be bloody murder.