Dell Rheaume

George Lutz and his wife Kathleen move into their Long Island dream house with their children only for their lives to be turned into a hellish nightmare. The legacy of a murder committed in the house gradually affects the family and a priest is brought in to try and exorcise the demonic presence from their home.

Matthew Bennell notices that several of his friends are complaining that their close relatives are in some way different. When questioned later they themselves seem changed, as they deny everything or make lame excuses. As the invaders increase in number they become more open and Bennell, who has by now witnessed an attempted 'replacement', realises that he and his friends must escape or suffer the same fate.