[orbsa65]

I remember seeing a horror movie years ago where this group of people go into this cursed house and then a couple in the group go into a room and have sexual intercourse and somehow triggers the curse that ends up releasing an evil female entity that terrorizes all of them. They find out how it happens through some book. One of the girls in the group who was the only survivor gets possessed by the main entity/demon at the end. Which movie was this? It was made somewhere between 2000 and 2007. I've asked this somewhere else before and it was not Night of the Demons, The Hazing(Dead Scared), The Open Door, or The Wailer.