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Summary: Rogue San Francisco cop “Dirt Harry” Callahan doesn’t believe in blind obedience to the rules, but when a vigilante group starts executing criminals who have escaped punishment on technicalities, that’s going too far. Against the orders of his commanding officer, Callahan begins investigating his hunch that another policeman is behind the killings. From 1973. Director: Ted Post. Prequel: Dirty Harry. Cast, among others: Clint Eastwood, Hal Holbrook, David Soul, Tim Matheson, Robert Urich.