When it comes to horror films, a dash of holy water, a priest waving a cross, and some unintelligible Latin usually provide enough legitimacy to make the most demonic possessions believable to the general population. But when brothers Chad and Carey Hayes set to writing their most recent screenplay, they wanted an accurate portrayal more than dramatic. Diana Walsh-Pasulka (M.A. ’99) provided the expertise they needed for incorporating the Old Roman Rite of exorcism preferred by Ed and Lorraine Warren, the couple who famously investigated the Amityville Horror and the real life inspiration...