The Sleep of Reason (Doctor Who)

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?

Caroline 'Laska' Darnell is a perfectly normal 19 year-old. But one day a terrible suicide attempt sees her admitted to the Retreat, a groundbreaking medical centre in the woods. To her horror, she recognises it from her nightmares about an old building haunted by ghostly dogs, and realises that something is very wrong with the institute...