

A physicist finds himself drawn into an investigation to track down a spy at his research station.
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Cast
- Marshall ThompsonDr. Cliff Mitchell
- John LoderMajor Anderson
- Henry OscarJohn Manning
- John StuartDr. Warren
- Anne AubreyJill Warren
- Magda MillerRuth
- Murray KashWaldo
- Michael MellingerTony Norwood
- Robert MacKenzieDale
- Tom BowmanCharles
Crew
- Ronald KinnochDirector
- Brian ClemensScreenplay
- Ronald KinnochScreenplay
- Peter MayhewEditor
- Ronald KinnochProducer
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