The year is 1979, and Polly Gaskell thinks her life is complete. She and her husband Graham, along with their newborn son, have moved into a prestigious new estate on the outskirts of Crowford. Graham has a great job and Polly's happy looking after the baby. They're all set to join the town's social elite. Soon, however, Polly starts to realize that something is very wrong with their new home. For one thing, strange noises in the middle of the night hint at a mysterious presence. For another, she begins to hear stories about the land beneath the house. When strange forces attack both Polly and her son, she realizes she has to escape, but she finds instead that Crowford Rise isn't quite so willing to let anyone go. What really happened when the new houses were built? What malevolent entity lurks in the shadows? And what was once buried deep below the new estate?