Racketeer Steve Recka, art patron and political power-maker, rules his town and Madame Lan Ying, his beautiful friend and hostess (read:mistress), with an iron hand. He meets Margaret Van Kase, a socialite not impressed by his power nor his wealth, having no money herself, and Steve makes frantic efforts to win her and turns away from the loyal Lin Yang.
Is Dangerous to Know on Netflix? Unfortunately the movie Dangerous to Know is not yet available on Netflix.
| Crew | Mary Wong | Stand In |
| Directing | Robert Florey | Director |
| Editing | Arthur P. Schmidt | Editor |
| Art | Hans Dreier | Art Direction |
| Art | John B. Goodman | Art Direction |
| Costume & Make-Up | Edith Head | Costume Design |
| Writing | William R. Lipman | Screenplay |
| Writing | Horace McCoy | Screenplay |
| Sound | Harry Lindgren | Sound Recordist |
| Sound | Richard Olson | Sound Recordist |
| Art | A. E. Freudeman | Set Decoration |
| Sound | Boris Morros | Music Director |
| Camera | Theodor Sparkuhl | Director of Photography |
| Writing | Edgar Wallace | Novel |
