When Alan and his wife Sarah take a trip to Italy, house sitter Kelly moves in. Young and lonely for commitment, Kelly is quickly joined by her younger brother Tim (RJ Mitte), and her trashy-boyfriend Jesse. It's not long before the trio find themselves drawn into a web of disturbing revelations. Jesse suddenly decides to kidnap eight-year-old Adam from the supermarket. But not all is what it seems - there is nothing of him in the news, and from the moment he arrives, he seems to radiate innocent control over its hapless occupants. Caught in a netherworld between hallucination and reality they soon loose themselves to the house.