Lady Anne Coke, the eldest daughter of the 5th Earl of Leicester, is in Scunthorpe on a business trip when she is called home after a sudden death in the family. She returns to Holkham Hall to discover a mystery: her beloved grandfather has been found death at the bottom of a flight of stairs with a valuable piece of jewellery in his pocket. No one can find a cause of death, and some even suspect foul play from the ghost who supposedly haunts the house. But Anne's suspicions are aroused; she grew close to her grandfather when they lived together during the war and she is determined to discover the truth.