After an immensely creepy prelude that reminds us of James Wan's fetish for creepy dolls, an opening text crawl provides us with the context of the film: The Warrens are «demonologists» who are formally recognized by the Catholic church, and the following is the tale of their most bizarre, harrowing case, involving a
cursed house and a haunted
family, all set against the groovy yet
Gothic backdrop of the 70s.