Down Three Dark Streets is a 1954 American film noir crime film directed by Arnold Laven and starring Broderick Crawford and Ruth Roman. The screenplay was written by Gordon Gordon and Mildred Gordon, based on their novel Case File FBI. Plot FBI agent John Ripley investigates the three cases his murdered partner Zack Stewart was working on, thinking that one of them may reveal the identity of Stewart's murderer. One involves wanted fugitive Joe Walpo, who has killed a gas-station attendant. Another concerns a department store fashion buyer, Kate Martell, who is being extorted by a man threatening to kill her daughter. A third has to do with a gang of thugs who hijack cars. Ripley and his new partner trail Connie Anderson, a girlfriend of Walpo's, to his hideout, where Ripley shoots him. They tie up the car-jacking case and are then able to narrow down who the killer of the FBI agent must be. They follow Kate to the "Hollywood" sign in the hills above Los Angeles, where she has been told to bring the money. There the extortionist is revealed to be a man named Milson who had shown a romantic interest in Kate, leading to a confrontation with Ripley. Cast Broderick Crawford as FBI Agent John Ripley Ruth Roman as Kate Martell Martha Hyer as Connie Anderson Marisa Pavan as Julie Angelino Max Showalter as Dave Milson (as Casey Adams) Kenneth Tobey as Zack Stewart Gene Reynolds as Vince Angelino William Johnstone as Frank Pace Harlan Warde as Greg Barker Jay Adler as Uncle Max Claude Akins as Matty Pavelich Suzanne Alexander as Brenda Ralles Myra Marsh as Mrs. Domes Joe Basselt as Joe Walpo William Schallert as murdered gas-station attendant (uncredited) Production Writing J. Edgar Hoover objected to early drafts of the script. References External links 1954 films Films based on American novels Film noir American crime films 1954 crime films Films directed by Arnold Laven Films produced by Edward Small Films with screenplays by the Gordons Films about the Federal Bureau of Investigation Films scored by Paul Sawtell 1950s English-language films American black-and-white films 1950s American films