A cult demands the return of their member after his family kidnaps him. My only problem is that about halfway through the family should have cut their losses. The returns diminish ridiculously after that. However, it is a given that people act stupidly in a horror movie. If you can't get behind that most fundamental of horror movie tropes then don't bother. And voila, we have the scenario where I can dig the hell out of this movie even with that big of a beef. I love the evil that flourishes throughout the cult, down to the kidnapped son. I love the high tension all the way through. I do hate the women, especially the young mother but I think the writer has a bias there.