Big mistake!!!
I have seen the first episode of this show and there is a huge mistake: the guy who is supposed to be possessed is referred to as an atheist by father Jacob. An atheist is someone who doesn't believe. The guy was very much interested and definitely believed in God; he just chose the other side. That kind of belief is satanism, not atheism.
I am agnostic (which means, to those who do not know, I believe that I just don't know whether God exists or not) and anti-religion. This show is full of superstitions, religious inaccuracies and lies. If they were more intelligent about it I would have enjoyed it even though I could never believe it. But they made atheism (by mistake maybe) and homosexuality to be the devil.
People can believe anything they want as far as I'm concerned as long as they don't try to impose their beliefs onto others. And this show does impose their prejudice onto the viewer.