Wanting to escape city life for the saner, safer countryside, New Yorkers Cooper Tilson, his wife Leah, and their two children move into a dilapidated old mansion still filled with the possessions of the previous family. Turning it into their dream house soon becomes a living nightmare when the previous owner shows up, and a series of terrifying incidents lead them on a spine-tingling search for clues to the estate's dark and lurid past.