Fan Casting Duplicate Death

London is the scene for a card party given by a social-climbing hostess. Suddenly, the seemingly civilized game of Duplicate Bridge is interrupted by a double murder, both victims murdered by the same sinister method, strangled with picture wire. The crimes seem identical, but were they carried out by the same hand? And, what was the connection between the first, a mysterious man of the world, and the second, an ambitious widow? Inspector Hemingway has his work cut out for him, and the odds of solving this crime are stacked up against him...