He hears the silence. He see's the darkness. He's the only one who can stop the killing.

Karate champion Matt Logan is enlisted by the police to train officers in self-defense after narcotics agents are killed by an assailant using the martial arts.

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Main Cast: Chuck Norris, Jennifer O'Neill, Clu Gulager, Ron O'Neal, Bill Wallace, Eric Laneuville, James Whitmore Jr., Clint Ritchie, Pepe Serna, Raymond Vitte

Director: Paul Aaron

Writers: Pat E. Johnson, Ernest Tidyman

Editors: Anne Goursaud, Bert Lovitt

Cinematographer: Roger Shearman Jr.

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