An American reporter in Japan is sent to interview an eccentric Japanese scientist working on bizarre experiments in his mountain laboratory. When the doctor realizes that the hapless correspondent is the perfect subject for his next experiment, he drugs the unfortunate man and injects him with a serum that gradually transforms him into a hideous, two-headed monster. 　　译文(2): 一位在日本的美国记者被派去采访一位古怪的日本科学家，这位科学家正在他的山区实验室里进行奇怪的实验。当医生意识到这个倒霉的记者是他下一个实验的完美对象时，他给这个倒霉的人下了药，给他注射了一种血清，渐渐地把他变成了一个可怕的双头怪物。