Trauma survivor Elora Vale is finishing the last class of her college career when she meets Dr. Dexter Dey, the handsome psychiatric nursing instructor, who sees through her without effort. Romantic desires arise, but Elora stifles the embers before they can ignite. Six months following graduation Dr. Dey calls to offer Elora a nursing position at the remote and frigid St. Matthew Island complex for the criminally insane. She accepts and travels to the complex, far from civilization. Time passes and the formidable Patient 13 is released from isolation. Tension rises and a forbidden relationship is forged. Supplies hit a critical low and a severe winter storm knocks out all power. In the dark, without control Elora, Dr. Dey and their fellow nurses face a man with an insatiable blood lust. Faced with death, Elora is forced to plunge into the darkness within to find the true magnitude of her latent strength.