In 1966, with World War II over for more than 20 years, a CIA operative, code-named "Tiger", is called out of semi-retirement to uncover a highly-placed NATO mole who is threatening US security. "Tiger" is Aline, Countess of Romanones, an internationally prominent socialite who can mix comfortably in the right European circles and charm people into saying more than they intend. To succeed in her mission, Aline must recruit a trusted friend whose loyalty is unquestioned, a native American susceptible to the pressures of patriotism - The Duchess of Windsor. "The Spy Went Dancing" moves from society drawing rooms to encounters in dark, dangerous alleys to provide a story of real-life intrigue. It is a sequel to "The Spy Wore Red".