A Study in Scarlet
Starring Reginald Owen, Anna May Wong, Alan Mowbray, Warburton Gamble, June Clyde, John Warburton, Doris Lloyd, J. M. Kerrigan, Alan Dinehart, Billy Bevan
It's a thriller and crime movie, and has a rating of 5.6 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Austria.