In a pre-credit sequence two criminals hijack a plane and kidnap a young woman. After parachuting out of the plane with the woman, they pass her over to gangsters. The gangsters then murder the kidnappers.
A train carrying passengers and money is ambushed by Indians.
The passengers realize that the "Indians" are disguised bandits and the bandits murder them all.
The main character, police superintendent Moldovan, is responsible for investigating an organized massacre at the Viraga prison. In the massacre political opponents of the fascist regime of 1940 were killed, including a group of communist activists.