Lesser Universal horror starring Patric Knowles as a detective out to solve a string of murders by the titular evil doctor. This is not a particularly memorable movie, even for a Universal horror fan like myself. It's one of the few that I've only seen a handful of times. Patric Knowles does ok but he's not really the quippy type this part calls for. Lloyd Nolan would've been great in the role. Lionel Atwill is always worth a look but here he has a very small part. Shemp Howard and Mantan Moreland provide comic relief. I'll let you guess which one is more likely to generate discussion today. Anne Gwynne is the frustrated love interest. A few more recognizable character actors round out the cast. Oh and there's a guy in an ape suit. That's always great.