In the sleepy beachside town of Brewster, Massachusetts, a patch of land known locally as 'The Punkhorns' has been largely left alone for centuries. As the town falls into dire financial straits, it allows a big-city developer to come in and build on the hallowed land. Moments after the ink of the contract is dry, three people go missing in The Punkhorns.

Casper Kelly, an outside consultant, is brought in to help the local police understand the mysterious events transpiring in their town. He's there to help them decipher the evidence and decide whether the events are paranormal or the result of the dark side of humanity. Can Casper solve the case before The Punkhorns take another victim?