Down Three Dark Streets is a 1954 American film made in a documentary style directed by Arnold Laven and starring Broderick Crawford, Ruth Roman, Martha Hyer, Marisa Pavan, Max Showalter, and Kenneth Tobey. When FBI Agent Zack Stewart is murdered, FBI Agent John Ripley (Crawford) takes over the remaining cases Stewart had yet to solve. The first concerns Joe Walpo (Joe Bassett), a prominent gangster wanted for murder. John eventually finds where Joe is hiding through his girlfriend Connie Anderson (Hyer). When Joe is killed, John realizes that Joe was not connected to the murder of Zack. John then begins to solve the next case, only to become further enraged at the lack of evidence concerning his fellow agent's murder. Eventually, however, John takes a closer look at a case concerning Kate Martell (Roman), the victim of an extortionist who decides to take matters into her own hands.