Dirty Harry (1971)
When a man calling himself "the Scorpio Killer" menaces San Francisco, tough-as-nails Police Inspector "Dirty" Harry Callahan is assigned to rack down the crazed psychopath.
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Magnum Force (1973)
Inspector "Dirty" Harry Callahan pursues a conspiracy of vigilante cops, who are not above going beyond the law to kill San Francisco's undesirables.