Story Line
The blueprints of an aeroplane built from an ultra-secret metal are stolen from national security. French secret service agent Walder believes that the documents are now in Switzerland, in the hands of a man named Lindbaum. The latter agrees to hand over the blueprints in return for a large sum of money. Another agent, Francis Coplan, is sent to Switzerland to handle the deal, but Lindbaum only has half of the documents because he was double-crossed by Kalpannen, an international crook. With the help of Heidi, a Swiss correspondent, Coplan sets out to identify the members of Kalpannen’s gang, only to find that they have all been murdered…
Top Cast

Henri Vidal
Francis Coplan

Barbara Laage
Hiedi Effen

Jacques Dacqmine
Walder

Nicole Maurey
Diana Rossi

Lino Ventura
Bérès
Margaret Rung
Sylvia
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Rating
Release Date
1957-03-15
Runtime
1h 40m
Genres

Part of the Series





