Ex-World War II pilot Frank Enley (Van Heflin) is a respected contractor and family man. Then his troubled, gimp-legged bombardier (Robert Ryan) shows up with a gun and a score to settle. Perhaps neither man is what he seems to be as director Fred Zinnemann (The Day of the Jackal) guides a searing Act of Violence, "the first postwar noir to take a challenging look at the ethics of men in combat" (Eddie Muller, Dark City: The Lost World of Film Noir). Murder lives on Mystery Street. John Sturges (The Great Escape) directs a revealing-for-the-era procedural about a Boston cop (Ricardo Montalban) solving a whodunit with the help of a Harvard forensic expert (Bruce Bennett). Welcome to CSI Noir.