Every year solicitor Graham Percy tours the West Country visiting old school friends Professor Bryan Shelley, the author Paul Heywood and Sir Alec Patmore, a famous theatrical knight now confined to a wheelchair. Unfortunately for Sheila Malory, her home in Taviscombe is also one of the tiresome lawyer's ports of call. Graham's life is so neatly organized that, one morning, Sheila is concerned when he doesn't return on time from his walk along the sea-front. She goes to look for him, but is horrified to learn that he has already been found fatally stabbed in a shelter along the Promenade. At first the police believe Graham was mugged, for no valuables or identification can be found. But then the dead man's wallet is washed ashore, with all the cash and credit cards intact. It seems the lawyer was the victim of a premeditated murder.