There was a time when Simon Knapp wouldn't have dared go near Edgfield House. As a teenager, he'd only had the nerve to snoop around the grounds. But now, returning 50 years later, he marches straight up to the derelict 18th-century stately home and pushes open the front door. But curiosity killed the cat. When the police arrive, it is with a similar carefree spirit that they carry out a routine search of the house. And they, too, come across something they were not looking for. But the mute society of Yorkshire's back-of-beyond village seems keen to guard its secrets, leaving DCI Hennessey and Sergeant Yellich with a difficult case on their hands.