The latest in a long line of suicide attempts sees Caroline 'Laska' Darnell admitted to the Retreat, a groundbreaking medical center surrounded by woodland. To her horror, she recognizes the Retreat from her recent nightmares of an old building haunted by ghostly dogs with glowing eyes. But who will believe her stories of an evil from the past that has already made one attempt to destroy the building and all its inhabitants? The mysterious Dr. Smith seems curiously aware of the Retreat's past, and is utterly fascinated by Laska's waking dreams and prophetic nightmares. But if Laska is unable to trust her own perceptions, can she trust Dr. Smith?