 In 1946, the former boxers Dwight "Bucky" Bleichert and Lee Blanchard are policemen in Los Angeles. Lee has a good relationship with his chief and uses a box fight between them to promote the department and get a raise to the police force. They succeed and are promoted to homicide detectives, working together. Bucky becomes a close friend of Lee and his girlfriend Kay Lake, forming a triangle of love. When the corpse of the aspirant actress Elizabeth Short is found mutilated, Lee becomes obsessed to solve the case called by the press Black Dahlia. Meanwhile, Bucky s investigation leads him to a Madeleine Linscott, the daughter of a powerful and wealthy constructor that resembles the Black Dahlia. In a environment of corruption and lies, Bucky discloses hidden truths.