Two sisters discover a dark secret while making a documentary about mediums for a college final.

During their last weekend together, a group of friends staying at a reclusive mountain house have their fun suddenly interrupted by a knock at the door.

To escape their marital problems, a young family travels from the city to spend the summer in Amish Country where a malevolent presence grips them. They soon discover that they were brought there for a reason and they must break free before the demonic hold consumes them.