Bagans and the crew dig deep into the mystery of the famed Poltergeist House, launching an unprecedented investigation inside the site of the classic horror film location to uncover the truth behind a rumored curse. Did real-life events converge with Poltergeist's fictional storyline to unlock a lethal, ancient darkness? After the team's lockdown leaves them with more questions than answers, Bagans believes a terrifying relic from the 1982 film could provide insight into the sinister energy that haunts the suburban California home.