In November 1974, six members of the DeFeo family were found murdered inside their beautiful seaside home. The mother, father, and four of their children were shot in the back as they lay sleeping in their beds. The bodies were discovered by the only family member left alive – the oldest son Butch DeFeo. What really happened that night in Amityville? Who murdered the DeFeo family and why? What caused the strange events in the house near the sea? Parapsychologists and psychics descend on the house to investigate claims of levitating objects and demonic possession in an attempt to explain why, 50 years later, this house is still a source of nightmares.