Europe's elite have gathered at the glittering Congress of Vienna, negotiating the fate of the continent by day and pursuing pleasure by night, until Princess Tatiana, the most beautiful and talked about woman in Vienna, is found murdered during an ill-timed rendezvous with three of her most powerful conquests. Suzanne Rannoch and her new husband, Malcolm, set out to investigate the murder, and a complex dance between husband and wife in the search for the truth ensues.