Sarah tries to leave her past behind and moves with her eight-year-old son, Chris, to the outskirts of a remote small town. When Chris runs into the woods after an argument, Sarah, searching for him, discovers a huge sinkhole in the ground. Chris returns seemingly unharmed, but Sarah soon notices disturbing changes in his behavior. The unsettling encounter with her confused neighbor, who killed her own child years ago, only intensifies Sarah's suspicions. Is the boy living in her house really her son, Chris?