In the opening scene of the film, a beautiful young woman swims in a rooftop pool. Poor gal. A shooter (Andrew Robinson) from a nearby building kills her with one shot. Soon, the SFPD will send detective Harry Callahan to investigate the happening. As "Dirty Harry" discovers the place where the shooter did his deed, Harry finds a note. Calling himself Scorpio, the assassin insists the city pay him big bucks or he will kill again; the victim will be a priest or a black American. Pulling his hair out, the mayor decides they should pay but Harry is adamant they should NOT. A compromise posting in the SF Chronicle says they will pay but need more time. Meanwhile, Harry goes to lunch but can't even digest his food without needing to stop a bank robbery nearby! Harry is one cool cop. The top police brass give Harry a new partner named Chico (Reni Santori) but he's rather green. Nevertheless, together these two hatch plans to "catch" Scorpio without paying big money. Unhappily, Scorpio matches them with tricky escapes. Now, a school bus full of children may be in danger! What can Harry do? This gritty, somewhat violent film is taken from the story of the real Zodiac killer. Its a sick, twisted tale but Harry is one admirable detective, played to understated perfection by Eastwood. Santori is quite likeable, Robinson is great as the loathsome killer and other cast members quite fine. Add on good cinematography and a tense, inventive plot and the movie is quite compelling. Its a classic folks! Don't delay in viewing it.