When Jack and Janet Smurl moved their family into a duplex in West Pittston, Pennsylvania, they thought they were starting fresh after a flood destroyed their old home. Instead, they claimed they’d invited something sinister inside. Over the next 13 years, the Smurls reported violent hauntings, ghostly attacks, and demonic torment that even drew the attention of famed investigators Ed and Lorraine Warren. But were they really victims of a haunting — or something far more human?