first of all and i have to say that i be not generally a big fan of werewolf movie in general . it not that i do not like them and just that i do not like them a lot . there be some that i have enjoy . werewolf of london ( 1935 and stuart walker ) and an american werewolf in london ( 1981 and john landis ) . and some that i have think be okay but nothing special . the wolf man ( 1941 and george waggner ) and the howling ( 1981 and joe dante ) and dog soldier ( 2002 and neil marshall ) be some example . but overall and the werewolf sub genre be not my favorite . but i have this one on one of those 50 movie set so i thought i would give it a watch and see how it be . spoiler follow . the mad monster be a werewolf tale and but the werewolf be primarily use a a vehicle for revenge by a mad scientist and dr. lorenzo cameron ( george zucco ) . dr. cameron have discover a way to transform human being into beast and specifically wolf and but be ridicule and ostracize by the great scientific community . force out of a prestigious position and he go mad and plots revenge on those who mock him in an old country mansion and where he live with his daughter lenora ( the lovely anne nagel ) and his assistant petro ( glenn strange ) of limited mental ability . use his serum and dr. cameron transforms petro into a werewolf and send him off to kill his old rival . eventually and though and the werewolf petro get out of control and both the mad doctor and his creation be kill . the movie also play out somewhat a a murder or crime drama and with lenora journalist suitor ( johnny down ) investigate the doctor strange behavior and the rash of murder . the story seem to borrow many element from other big picture that come before it . there be reminder of frankenstein ( 1931 and james whale ) in the creation of a monster which run amok and and the creature kill an innocent child . vision of dr. jekyll and mr. hyde ( 1931 and rouben mamoulian or the 1941 and victor fleming version ) and the wolf man ( 1941 and george waggner ) also come to mind . and that be one of the problem with this movie in my view it come across a a mediocre melding of some great film . it doesn not add much to the genre . true and there be some redeeming quality . george zucco performance be convince and and the scene show dr. lorenzo talk to his vision or hallucination of his tormentor work well for me in show his insanity . there be some reasonable character build up and at least in the case of his character . but glenn strange character be not at all convincing and and seem to have this comedic quality whether intentional or not and i be not sure that just doesn not fit into the movie a a whole . i seem to like it more than most imdb user base on my rating of 4/10 and but it be still a below average film . perhaps worth a view if you be a fan of early werewolf movie or a big fan of the 1930 and 1940 horror film and but unlikely to appeal to you if you be not .