The Undercover Man (1949)

Frank Warren is a treasury agent assigned to put an end to the activities of a powerful mob crime boss. Frank works undercover, posing as a criminal to seek information, but is frustrated when all he finds are terrified witnesses and corrupt police officers.

Directed by: Joseph H. Lewis

Starring: Glenn Ford, Nina Foch, James Whitmore, Barry Kelley, Frank Tweddell, Howard St. John

Links: Columbia Pictures, IMDb, Movie posters, Movie stills