dr. cameron and a discredited scientist succeed with his experiment in create serum the transforms men into wolf like creature . originally develop this formula to help the world and the scientist decide to use his newly create subject to exact revenge upon the scientist who be responsible for his ouster from the scientific community . the scientist daughter lenora grow wary of her father action and share her suspicion with a newspaper reporter . when the scientist lose control of his creature and it fall upon the scientist daughter and the reporter to stop it and accord to the dvd sleeve synopsis . mad scientist george zucco ( a lorenzo cameron ) create his formula rather unimaginatively and by mix human and wolf blood . this bring the beast out in hulk glenn strange ( a petro aka pedro ) and who be direct to act like lon chaney jr. in of mouse and men . johnny down ( a tom gregory ) and anna nagel ( a lenora cameron ) be a likable werewolf hunter and damsel in distress . certainly and the mad monster be no substitute for the wolf man while but and it a serviceable addendum . the grainy black and white photography enhance the foggy and cow webbed atmosphere . god ( uncredited ) strike up a well do end and too . like blaine ( robert strange ) say and mingle the blood of man and beast be downright sacrilege . the mad monster ( 1942 ) sam newfield ~ george zucco and johnny down and anna nagel .