Kat Holloway knows that her beau and confidante Daniel McAdam has a talent for dangerous work as a Scotland Yard agent. At long last though, Daniel's cold-hearted boss has promised that after a final mission, his debt will be repaid, and he'll finally be free. However, Daniel must risk his life one last time, masquerading as a secretary to an elderly viscount who could be the mastermind behind the recent plots against the Queen and her government. Using her contacts throughout London, Kat discovers several of her friends and colleagues have been victims of vicious blackmail. They'll do anything to protect their scandalous secrets, even conform to the blackmailer's political agenda. If Kat and Daniel wish to save each other and the Crown, they must prove the blackmailer's identity and evade those who will stop at nothing to eliminate them.