The Street With No Name (1948) | FILM NOIR/CRIME | FULL MOVIE

After two gang-related killings in "Center City," a suspect (who was framed) is arrested, released on bail... and murdered. Inspector Briggs of the FBI recruits a young agent, Gene Cordell, to go undercover in the shadowy Skid Row area (alias George Manly) as a potential victim of the same racket. Soon, Gene meets Alec Stiles, neurotic mastermind who's "building an organization along scientific lines." Stiles recruits Cordell, whose job becomes a lot more dangerous.

IMDb: https://www.imdb.com/title/tt0040843