该电影由阿尔弗雷德·L·韦尔克、安东尼·曼执导，理查德·贝斯哈特、斯科特·布兰迪、罗伊·罗伯茨等主演，于1948年上映。在80分钟的叙事中，《黑狱杀人王》（又名：夜行者）In the Post-World War II, in Los Angeles, a criminal shots and kills a police officer in the middle of the night. Without any leads, the chief of the LAPD assigns Sgt. Chuck Jones and Sgt. Marty Brennan to investigate the murder and apprehend the culprits. When the dealer of electronics devices, Paul Reeves, is caught selling a stolen projector, the police identifies the criminal, and connects him to other unsolved robberies. Using the witnesses of his heists, they draw their face, but the true identity of the smart and intelligent criminal is not disclosed. The perseverance of Sgt. Marty Brennan in his investigation gives a clue where he might live.