One of PRC's rare attempts at Monster driven cinema features top flight movie villain George Zucco as a mad scientist obsessed with getting revenge on the colleagues who laughed at him by turning his slow-witted assistant, played by Glenn Strange (Abbott & Costello Meet Frankenstein) into a Wolf Man, even though it's plainly a coyote being used in the experiment!
Some genuinely spooky moments along with the doofy ones makes this a must see for students of low-end Horror from the Kings of Poverty Row.