Unknown Opponent (Hungarian: Ismeretlen ellenfél) is a 1940 Hungarian spy thriller film directed by Endre Rodríguez and starring Erzsi Simor, Andor Ajtay and Karola Zala.
[1] [2] It was shot at the Hunnia Studios in Budapest.
The film's sets were designed by the art director Miklós Velits.
A foreign power interested in a new Hungarian prototype aircraft recruit Adrienne to steal the plans, but she falls for László the engineer behind the new design.
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