An American businessman visiting Lisbon gets mistaken for a British secret agent who stole some diamonds. As a result, he has everybody in Lisbon after him.

James Garneras William Beddoes
Melina Mercourias Aurora / Celeste da Costa
Sandra Deeas Amy Franklin
Anthony Franciosaas Steve / Antonio
Robert Cooteas Hatton / Jones
Roland Culveras Doctor Mathieson
Grégoire Aslanas Florian
Cecil Parkeras Sir Huntley Frazier
Dulcie Grayas Mrs. Mathieson
Martin Bensonas Politanu