Dangerous to Know (1938)
Genres: Drama, Crime
Cast: Anna May Wong, Akim Tamiroff, Gail Patrick
Dangerous to Know is a 1938 American crime film directed by Robert Florey and starring Anna May Wong, Akim Tamiroff and Gail Patrick. 
The picture is based on British crime writer Edgar Wallace's hit 1930 play, On the Spot, which had been inspired by the career of Al Capone. The supporting cast features Lloyd Nolan and Anthony Quinn. The film's tagline was "No woman ever survived his love!"