It deals with the alleged Western sabotage of Hungarian oil production.
József Bihari
as Barla, mérnök
Erzsi Orsolya
as Barláné
Ferenc Ladányi
as Nyerges, a MAKIRT termelési felelõse
Sándor Suka
as Környe
Gyula Benkő
as Budai örnagy
József Juhász
as Öreg munkás
István Palotai
as Simics
Lörinc Deák
as Államtitkár
Lajos Rajczy
as Kristófi, ÁVH vezérezredes
Antal Farkas
as ÁVH õrmester
Lajos Mányai
as Dalton
Andor Ajtay
as Pápay