Tômei ningen to hae otoko

There are a series of mysterious stabbing deaths in post war Tokyo. Yet no attacker was seen or could have gained entry. Police investigate. They find that the deaths are preceded by buzzing sounds. A group of Japanese scientists were working on cosmic ray research during war and one (Kuroki) feels he was sold out by the others. He spend 6 years in prison and wants to get even. He has a gas that shrinks humans to fly size so they can do his dirty work. Another Scientist has developed a ray that makes objects invisible. A cop uses it on himself and while invisible discovers what Kuroki is up to. But Kuroki finds out about the invisible ray and wants it. This is a film with good acting, audio and video quality. Even the fake cosmic ray lab is realistic. But it is all lost when we see the tiny shrunken man flying around in his business suit, without wings making buzzing sounds. It is so completely unbelievable that it's hilarious. In Japanese with English subtitles. Black and White.