If you liked this movie, you should also see: The Conversation (1974)Rear Window (1954)The Last of Sheila (1973)Missing (1982)Jaws (1975)
During the Cold War, an American scientist appears to defect to East Germany as part of a cloak and dagger mission to find the formula for a resin solution, but the plan goes awry when his fiancee, unaware of his motivation, follows him across the border.