solid comedy entertainment and with musical interlude and it generate a fast pace that carry proceeding along in zestful tempo through a maze of humorous and chiller complication . boris karloff and bela lugosi and peter lorre form a strong setup of sinister villainy . the script contain all the standard mystery film prop slide panel and secret passageway and thunder and lightning and poison blow dart . karloff and lugosi and lorre go in for heavy leer and obvious melodramatics of the gaslit era . kay kyser and his band offer great entertainment for the people live in the 1940 who be try to forget about the horror of world war ii .