Dr. Wong (Jess Franco) sends his gangsters to eliminate Mr. Jung. The shadow of the judoka of Bruce Lyn (Jose Llamas) appears projected in the wall and swears for revenge. In the meantime, Lina Romay and Albino Graziani, two british secret service agents, investigate Jungs murder. Wongs wants to get rid of Macedo, a phillippinean gangster in bad business, and dominate the market.