Roadblock (1951) - So Swell Of You

Some weeks after they met by chance and she semi-snubbed him, insurance detective Joe (Charles McGraw), following a series of fur heists, finds Diane (Joan Dixon), who has no visible means of support, on the arm of a notorious crime boss (Lowell Gilmore) at an L-A club, Martha Mears the singer, in Roadblock, 1951.