When her parents decide to separate, sixteen-year-old Anna Brooks is sent to spend the summer in a small coastal town with her old-fashioned aunt and uncle, Jennifer and David Collingwood. Anna is narcoleptic and suffers traumatic hallucinations as a side effect of her medication. While living in small-town suburbia, several bizarre incidents occur, leading Anna to question her sanity. Is it all in her head, or is something more sinister in the small sleepy town?