Murders in the Zoo
Starring Charles Ruggles, Lionel Atwill, Gail Patrick, Randolph Scott, John Lodge, Kathleen Burke, Harry Beresford, Jane Darwell, Nancy Crowley, Samuel S. Hinds
It's a crime and horror movie, and has a rating of 6.5 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Switzerland.