Doug and Karen have rented a picturesque vacation home on a quaint New England island. Doug's goal is to complete the follow-up to his debut novel. Karen's is to relax. But the couple soon realizes that they are being watched by something that's inside the house with them, something that has formed an unnatural attachment to Doug and has now begun to terrorize Karen. As Karen begins to uncover the home's malevolent past she discovers that the presence...