A British Sanitary Engineer, goes on holiday with a set of plans for a new secret weapon which he has mistaken for his new plumbing invention. Everyone is hunting for him, including the Russians. The Russians find him and offer him a job in the Kremlin doing research (on plumbing he believes). He accepts, arrives in Russia and falls in love with Tania, a secret agent. And then discovers the true nature of the plans he is carrying...
George Cole
Oskar Homolka
Nadia Gray
Wilfrid Hyde-White
Richard Wattis
Irene Handl
Christopher Lee
Frederick Leister
Frederick Valk
Geoffrey Sumner
Ronald Adam
Edwin Styles
Kynaston Reeves
Ernest Jay
Michael Medwin
Henry Hewitt
Walter Horsbrugh
Anthony Shaw
Tim Turner
Gibb McLaughlin
Michael Balfour
Hal Osmond
Charles Goldner
Ronnie Stevens
Eleanor Summerfield
Phyllis Morris
Myrtle Reed
Ina De La Haye
David Hurst
Bernard Rebel
Olaf Pooley
Guido Lorraine
Terence Alexander
Richard Marner
Martin Boddey
Gerard Heinz
Fred Berger
Victor Maddern
Reed De Rouen
Johnny Catcher
Willoughby Gray
Anton Diffring