It is based on real-life accounts of the L.A.P.D. and gangsters in 1940s Los Angeles as chronicled in John Buntin's book L.A. Noir: The Struggle for the Soul of America's Most Seductive City.
本劇是基於洛杉磯警察局和1940年代洛杉磯黑幫的真實描述，記錄在John Buntin的著作《L.A. Noir: The Struggle for the Soul of America's Most Seductive City》。