A spy film about Professor Skalski's invention - rays that could stop engines, thus avoiding wars - which becomes the focus of foreign intelligence. In order to take over the discovery, a secret agent is sent to reach the invention via the professor's son.
Writer: Antoni Marczynski, Mieczysław Krawicz
Director: Mieczysław Krawicz
Rita Holm, Singer and intelligence agent
Pedro
Professor Skalski, Jerzy's father
Engineer Jerzy Skalski
Head of Intelligence
Polish counterintelligence agent
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