The Ammons haunting case, also known as the 200 Demons House or Demon House, is a haunting and demonic possession which occurred in Gary, Indiana, in the United States in 2011. Latoya Ammons, her mother, Rosa Campbell, and her three children claimed paranormal activity occurred in the residence. But shockingly, their claims would go on to be witnessed by some very credible witnesses. This included one of the Ammons sons walking up the wall of the hospital backwards!