Fans to this day are left theorizing if the demons and extraterrestrials on American Horror Story: Asylum were just products of cognition gone haywire or the real deal. Then again, if any American Horror Story season should confound viewers, let it be the one about a loony bin. 

At least one thing made sense. Sister Mary Eunice proves that demons cannot be bothered with religious rituals as The Exorcist author and Catholic hardliner William Peter Blatty would have us believe.