
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

as Inspector Lou Van Alsdale

as Sgt. Pat Cassady

as Howard McBride

as Kathy Cooper

as Capt. E. J. Goodlad

as Frederick Cooper

as Dr. Charles Bedford

as Freddie Trench

as Rainie Lewis

as Victor Shoddy

as J.P. Moose

as Raphael

as Don Cope

as Harold Britten

as Lulu

as Inspector Poole

as Surgical Nurse

as Lilly

as Man with Tape Recorder at Hospital (uncredited)

as Doctor (uncredited)