In the grip of grief following the death of his young son, his marriage on the rocks and nearing bankruptcy, Parker reluctantly returns to work as a private investigator. Embarking on an unusual assignment to observe a woman from an abandoned apartment, Parker witnesses bizarre happenings surrounding her, unaware that the derelict building that he surveys her from has birthed a dark presence which slowly threatens to consume him.
Grace returns to the small town she grew up in to find the brother, David, is missing. Deciding that she must reunite her family, she follows a lead which takes her deep into the wilderness. Lost, injured and alone, soon her only hope is another hiker who is communicating with her via her radio. Grace makes her way closer to this mysterious hiker – however, suspicions start to grow about their true identity. As the darkness grows ever more menacing and a threatening presence begins to consume Grace, who can she really trust?
In a bleak future, a lonely man breaks into an abandoned dog track to chase former glory.
