Professional killer Holland is forced out of retirement to break a Central American government's political torture ring when one of his friends, a Latin American journalist, is killed. The murderer, Doctor Clement Molloch, is the master sadist behind the political torture of innocent victims. Posing as a journalist, Holland lures Molloch out of his fortress-like headquarters by using his murdered friend's wife and daughter as bait. When Holland kidnaps Molloch's sister, the doctor is led on a wild chase that takes him to an abandoned opal mine where he finally comes face to face with Holland.
Charles Bronson
as Holland
José Ferrer
as Dr. Hector Lomelin
Theresa Saldana
as Rhiana Hidalgo / Nancy
Joseph Maher
as Dr. Clement Molloch
René Enríquez
as Max Ortiz, Holland's contact in Nicaragua
John Glover
as Paul Briggs, U.S. Embassy
Raymond St. Jacques
as Randolph, Molloch's Bodyguard
Antoinette Bower
as Claire, Molloch's Sister
Enrique Lucero
as Colonel Victor Aristos
Jorge Luke
as Cillero, Molloch's Chauffeur
Mischa Hausserman
as Karl
Roger Cudney
as Cannell
