The Streets of San Francisco is a 1970s television police drama filmed on location in San Francisco, California, and produced by Quinn Martin Productions, with the first season produced in association with Warner Bros. Television (QM produced the show on its own for the remainder of its run), where it starred Karl Malden and Michael Douglas as two detectives in the San Francisco Bay Area. The show ran for five seasons, between September 16, 1972, and June 9, 1977, on ABC, amassing a total of 119 60-minute episodes. The series started with a pilot movie of the same title (based on the detective novel Poor, Poor Ophelia by Carolyn Weston) earlier in 1972. Edward Hume who wrote the teleplay for the pilot was credited as having developed the series based on characters in Weston's novel.