Two San Francisco detectives investigating a murder committed on one of the city's famous cable cars discover that the victim was the son of a shipping tycoon. The trail leads to a drug dealer, a shady physician and a nervous police captain

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Main Cast: Robert Hooks, Jeremy Slate, Robert Wagner, Carol Lynley, Simon Oakland, John Randolph, José Ferrer, Don Pedro Colley, Ta-Tanisha, Fred Carson

Director: Jerry Thorpe

Writer: Herman Miller

Editors: Alex Beaton, John W. Holmes

Cinematographer: Fred J. Koenekamp

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