Two British agents are murdered by a mysterious Neo-Nazi organization in West Berlin. The British Secret Service sends agent Quiller to investigate. Soon Quiller is confronted with Neo-Nazi chief "Oktober" and involved in a dangerous game where each side tries to find out the enemy's headquarters at any price.—Dirk Bauer
In the West Berlin of the 1960s, two British agents are killed by a Nazi group, prompting British Intelligence to dispatch agent Quiller to investigate.