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 |
| Art | John B. Goodman | Art Direction |
| Directing | Robert Florey | Director |
| Costume & Make-Up | Edith Head | Costume Design |
| Editing | Arthur P. Schmidt | Editor |
| Art | Hans Dreier | Art Direction |
| Writing | William R. Lipman | Screenplay |
| Sound | Harry Lindgren | Sound Recordist |
| Sound | Richard Olson | Sound Recordist |
| Art | A. E. Freudeman | Set Decoration |
| Writing | Horace McCoy | Screenplay |
| Sound | Boris Morros | Music Director |
| Camera | Theodor Sparkuhl | Director of Photography |
| Writing | Edgar Wallace | Theatre Play |
| Directing | Stanley Goldsmith | Assistant Director |
| Production | Edward T. Lowe Jr. | Producer |
| Production | William LeBaron | Executive Producer |
| Art | Ernest Johnson | Props |
| Lighting | Karl Gotham | Gaffer |
| Directing | Eugene Busch | Script Supervisor |
