Montgomery Cliff (in his last role) plays James Bower, an American physicist visiting West Germany who's recruited by a shady CIA agent, named Adam, to help them with the defection of a Russian scientist. But an East German secret agent, named Peter Heinzeman, learns of Bower's meeting with Adam and threatens Bower to mind his own business, while Bower learns of a back story to all this involving stolen microfilm that each side wants. Written by
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Referenced in Montgomery Clift