A cursed, antique toy monkey from the original DeFeo home wreaks havoc and possesses a father after being gifted during the annual family reunion.

Nearly four decades after the bloody Ronald DeFeo murders in the infamous house on Amityville's 112 Ocean Avenue, a mysterious antique monkey toy finds its way into a small town in Nebraska. And at the annual family reunion, unsuspecting Mark receives the evil-infused vintage plaything for his 50th birthday celebration. But evil never sleeps. As a result, possessed by a pitiless demon, the seemingly harmless gift affects its target, spreading its undying malevolent influence throughout the house. Now, horrible visions urge Mark to spill his family's blood. It seems the satanic force has found the perfect host. Will Mark's loved ones survive the weekend and The Amityville Curse (1990)?—Nick Riganas