Swinging playboy Grand Duke Nicholas Goduno, a direct descendent of the Romanov family who were overthrown in the Russian Revolution of 1917, learns that his family's crown jewels will be exhibited at a London museum and plots to steal them. To this end, he gathers a crew of beautiful but dangerous women, led by Bridget Rafferty, to assist in his plot against Popov, the Soviet functionary in charge of the exhibit.
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Marcello Mastroianni
Grand Duke Nicholas Wladimirovitch Goduno
Rita Tushingham
Bridget Rafferty
Elaine Taylor
Victoria
Margaret Blye
Honey
Warren Mitchell
Popov
Leonard Rossiter
Inspector Dudley
Bill Fraser
Bookseller
Bryan Pringle
Police Sergeant
Francesca Tu
Jeanne Silkingers
David Horne
Duke of Windemere
Charles Lloyd Pack
Butler
Anne Blake
Nashka
David Webb
Juba Kennerley
Casino Patron (uncredited)
Ian Trigger
Popov's assistant (uncredited)
