Helen Chang moves into a college town in Massachusetts with her young son for a new life away from her abusive ex-husband. Due to financial difficulties and desperate circumstances, she accepts a job as a caretaker of an old house that offers free lodging. Before too long, she and her son begin to experience unusual activity in the house: strange noises in the middle of the night, doors opening and closing by themselves, items disappearing and reappearing somewhere else, and shadowy figures hovering in the corner of her eyes. When her son disappears, she's convinced he's still in the house somewhere because the house has taken him.
When no one believes her, Helen seeks the help of a paranormal researcher who works at the local university. Dr. David Strand has made a career of disproving so-called paranormal events and exposing fake psychics. He knows they are fake because he himself is a true psychic, though he is reluctant to admit it to himself. He decides to help her because he knows her grief: his wife and daughter also disappeared ten years ago under unusual circumstances. David believes if he helps the woman, he'd be able to find his own wife and daughter, or at least find out what happened to them. But as Helen and David dig deeper into the secrets of the house, they discover that a much darker force wants to consume them both... and it's hungry for more.