During the Cold War, diplomatic courier Mike Kells must retrieve a dispatch containing top-secret intelligence. But when he arrives at the meeting point, a train station in Salzburg, his contact turns up dead, and the message is nowhere to be found. With no clear suspect in sight, Kells must sort through his uncertain relationships with two women, while sidestepping the pitfalls of subterfuge, sabotage and spies in his search for the documents.
Tyrone Power
as Mike Kells
Patricia Neal
as Joan Ross
Stephen McNally
as Col. Cagle
Hildegard Knef
as Janine Betki
Karl Malden
as Sgt. Ernie Guelvada
James Millican
as Sam F. Carew
Stefan Schnabel
as Rasumny Platov
Herbert Berghof
as Arnov
Arthur Blake
as Maximilian
Helene Stanley
as Airline Stewardess
Hugh Marlowe
as Narrator (voice) (uncredited)
Charles Bronson
as Russian Agent (uncredited)