- Directors: Don Siegel
- Producers: Don Siegel
- Writers: Story, Harry Julian Fink, R M Fink, Screenplay, Harry Julian Fink, R M Fink, Dean Riesner, Uncredited, John Milius, Terrence Malick
- Genres: Action, Crime, Mystery, Thriller
- Actors: Clint Eastwood, Harry Guardino, Reni Santoni, John Vernon, Andy Robinson
A serial killer who calls himself “Scorpio” (Andy Robinson) murders a young woman in a San Francisco high-rise rooftop swimming pool using a high-powered sniper rifle from the top of the 555 California Street skyscraper. The spent shell casing is found on the roof of another high-rise across the street by Inspector Harry Callahan (Clint Eastwood); it’s accompanied by a ransom message from the Scorpio Killer, promising more deaths if the city does not pay him $100,000. The chief of police, with the agreement of the Mayor (John Vernon), assigns Harry to the case and arranges for extra support.
As he waits for his lunch in a local cafe, Harry notices a robbery is taking place and tells the cafe owner to call the police and report an armed robbery in progress. While he waits for reinforcements, the robbers emerge from the bank, shooting wildly into the bank, forcing Harry to act. He confronts a robber in the street, who fires a shotgun at him. Harry returns fire, sending the robber sprawling to the ground. Another robber makes it into the getaway car, which the driver aims at Harry as he pulls away. Harry fires at the car, causing the driver to lose control and crash into a fire hydrant. Harry turns back to the robber he shot earlier, approaches the wounded man (Albert Popwell), and utters his famous line:
Harry watches as Scorpio’s body floats on the surface of the water. He takes out his inspector’s badge, and hurls it into the water, walking away.