premise: Ed and Lorraine Warren were authors.
hypothesis: Edward Warren Miney ( September 7 , 1926 -- August 23 , 2006 ) and Lorraine Rita Warren ( née Moran , born January 31 , 1927 ) were a married Roman Catholic couple who were highly controversial American paranormal investigators and authors associated with prominent cases of hauntings . Edward was a World War II United States Navy veteran and former police officer who became a self-taught and self-professed demonologist , author , and lecturer . They authored numerous books about the paranormal and about their private investigations into various reports of paranormal activity . The Conjuring 2 . Patrick Wilson and Vera Farmiga reprise their roles as paranormal investigators and authors Ed and Lorraine Warren from the first film .