A Death in Diamonds

1957 - A young woman is found dead in a mews house a mile from Buckingham Palace, wearing only silk underwear and a a diamond tiara. An older man is discovered nearby, garrotted and pierced through the eye with a long, sharp implement. According to the police, a high society card game was going on downstairs that night. One of the players surely committed the murders, but each of them can give the others an alibi.