Greta is a young American woman who takes a job as a nanny in a remote English village, only to discover that the family’s 8-year-old is a life-sized doll that the parents care for just like a real boy, as a way to cope with the death of their actual son 20 years prior. After violating a list of strict rules, a series of disturbing and inexplicable events bring Greta’s worst nightmare to life, leading her to believe that the doll is actually alive.
Sitting in an empty theater, a film archivist watches the grainy footage that will be his undoing. David and his wife are perfectly happy – or so he believes. When he finds out the home he shares with his wife and son was the scene of a ghastly turn-of-the-century murder, David dismisses it as ancient history. That is, until the sinister history ripples into the present and casts a shadow over life as he knows it. And when a looming secret shatters his marriage, David can’t help but suspect the dark spirits of the house are somehow involved. In his drive to unveil the shadows hidden in the walls, David begins to descend into insanity, threatening the lives of everyone around him.