Young Carnacki investigates a case at Edgemere Manor where the skeletons of tourists are left on the shore of the lake. Carnacki must discard everything he knows when he discovers that the estate’s hermit is the Doctor, and that time is being manipulated by an unseen force.

The Doctor and Carnacki must work together if the mystery of Edgemere Manor is to be solved, the house saved, and the haunted residents find peace.