Suspense novelist Daisy Lowendahl (Bergen) is still recovering from a nervous breakdown when she decides to face her fear of being alone by spending time at her isolated Long Island beach house. But she's soon disturbed by over-zealous fan Spencer (Hall) and detective Eddie Bruno (Brown) who says Daisy's husband (Murphy) wants him to keep an eye on her. But Daisy just can't shake this feeling that something's wrong.