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.

Credits

Mieczysław KrawiczDirector

Hanka OrdonównaRita Holm, Singer and intelligence agent

Bogusław SamborskiPedro

Jerzy LeszczyńskiProfessor Skalski, Jerzy's father

Jerzy PichelskiEngineer Jerzy Skalski