A Scotland Yard detective probes a high-society house party for someone rotten when a government official is murdered in this classic British mystery. Preparations are underway for a grand party at Scamnum Court, the sweeping English country estate of the fabulously wealthy Duke of Horton. Some of the nation’s elite are invited for dinner, and some are even set to star in a semi-amateur production of Hamlet on an authentic Elizabethan stage in the banqueting hall. No expense is spared, but one guest soon pays with his life. Before the play ends, a shot is fired, and the actor playing Polonius—Lord Auldearn, the Lord Chancellor of England—is dead. With war looming on the horizon, suspicions arise over the possibility of espionage. Therefore, the prime minister sends Insp. John Appleby not only to investigate, but to also find a confidential government document. Appleby is lucky there’s a mystery novelist eager to lend a hand with the extensive guest list at Scamnum Court. He will need all the help he can get if he hopes to prevent the killer from making an encore performance . . .