One of the sons of late Dr. Henry Frankenstein finds his father's ghoulish creation in a coma and revives him, only to find out the monster is controlled by Ygor who is bent on revenge.
Not streaming on a subscription service in the US right now.
Starring Basil Rathbone, Boris Karloff, Bela Lugosi, Lionel Atwill, Josephine Hutchinson, Donnie Dunagan, Emma Dunn, Edgar Norton, Perry Ivins, Lawrence Grant