when walter stevens ( lionel atwill ) receive a threatening letter from a mysterious killer know a the gorilla and he call in a team of detective to help protect him and his family . unfortunately for mr. stevens and he hire the ritz brother . the gorilla do have a few thing go for it a big and old and dark house while a terrific thunderstorm while and a lunatic killer . the cast feature the always entertaining lionel atwill and bela lugosi . theyre both good and but i can not help feel sad that by 1939 lugosi be already reduce to play butler and servant in support role . ah well and he still enjoyable . and when the gorilla focus on the mystery or horror element of the plot and it pretty creepy and good . the problem be that there be far too much lame comedy in the mix . first and patsy kelly who play the maid and could make una oconnor look quiet and demure in comparison . she loud and annoy . second and and more annoy than kelly ever dream of and be the ritz brother . these guy be about as funny a fingernail on a chalkboard . i can not believe anyone ever find them entertain . theyre broad and over react style of comedy play on my nerve real fast . they completely destroy whatever atmosphere the gorilla might have have go for it .