German actor Peter van Eyck stars as Droste, a mild-mannered businessman who was an intelligence expert during World War II. When Droste runs into his old friend Baron Von Straub (Christopher Lee), the two rekindle a friendship that was interrupted by the war. However, when Von Straub asks Droste to deliver a small package to a friend in West Germany, the befuddled Droste is set up for a series of complicated spy games.
Peter van Eyck
Marianne Koch
Macdonald Carey
Christopher Lee
Billie Whitelaw
Albert Lieven
David Knight
Marius Goring
Helen Cherry
Colin Gordon
Niall MacGinnis
Eric Pohlmann
Peter Vaughan