The paralysed director of the Haghi banking house is living an unnoticed double life. He is also the head of an international espionage headquarter that is involved with robbery, murder, and extortion. Now, the head of secret service appoints a young associate, No. 326, to find the unknown boss of the espionage headquarter. Haghi gets to know about this and, in turn, assigns Russian Sonja to kill No. 326. But Sonja falls in love with her victim. Thus, Haghi takes her capture and eliminates adversary agents as well as any of his own agents who could lead No. 326 to him. Furthermore, he plans a staged train accident to finally kill No. 326. But the attack fails and, with Sonja′s help, No. 326 is able to blow Haghi′s cover and to smash his mob.