A spy film about how saboteurs obtain important data about the activities of a key company, while also trying to thwart the plan and undermine work morale. But vigilant security agencies intervene in time and stop their heinous raids.

Otomar Korbelář
as Dusek

Gustav Heverle
as Bartos

Otomar Krejča
as Subrt

Alena Vránová
as Helena

Jiří Sovák
as Beránek

Vladimír Řepa
as clerk Havelka

Rudolf Deyl
as Papousek

Miloš Kopecký
as Berka

Irena Kačírková
as servírka Emilka Tesarová

Jiří Dohnal
as kapitán SNB Horák