Who would win in a fight between The Invisible Man and The Human Fly? Well, when you think about it, the answer’s sort of obvious and how funny it would be to watch probably depends on your ability to detect the facial expressions of The Human Fly, but nevertheless Daiei managed to make an entire film out of this concept which is a sort of late follow-up to their original take on Invisible Man Appears from 1949. Like that film, The Invisible Man vs The Human Fly (透明人間と蝿男, Tomei Ningen to Hae Otoko) also adopts a deadpan, straightforward tone despite its rather ridiculous premise.
Tokyo is being plagued by a series of mysterious murders occurring in broad daylight in which the victim is stabbed through the back piercing the heart yet witnesses report seeing no suspicious activity near the crime scene. Perhaps The Invisible Man did it, hahaha….However, when the man sitting next to the professor in charge of researching the “imperceptibility device” is murdered in an aircraft toilet, the police get wise to a possibly surreal explanation for these bizarre crimes. The only other evidence they have is a connection between a sleazy nightclub owner, a friend of his and one of the murdered men who briefly served together during the war, the fact that one of the victims pointed at the sky before dying, and reports of a strange buzzing sound….
Interestingly, the major viewpoint here is from the policemen investigating the case and their attempts to get their heads around this extremely unusual series of events. As often happens with revisiting a form of technology which has been used for ill in the previous picture, here the “imperceptibility device” becomes a force for good as it might be able to help the powers at be stamp out The Human Fly. This time there’s not so much of the accompanying madness which is caused by going invisible but there’s still a heavy price to be paid as no one’s figured out a way of turning back which doesn’t involve rapid death from cancer immediately afterwards.
By contrast, The Human Fly is born of a man made serum developed by Japanese mad scientists during World War II and brought back by a man who was abandoned on an island by his comrades and subsequently left to take the wrap at a war crimes tribunal. He wants to use the technology to further his own success yet has a minion carrying out most of the dirty work. The Human Fly serum does, apparently, carry a number of psychological side effects including violent impulses, paranoia and addiction.
The special effects are not quite as good as in Invisible Man Appears though the invisible antics are not the focus of the film anyway. Bizarrely, The Human Fly is just a shrunken man who is somehow able to zip about like a regular fly even though he’s still dressed in his normal business suit and keeps his arms rigidly to his sides like some kind of human torpedo. Apparently, the buzzing sound is made because of his being very small (so says science) which gets around the inconvenient truth of him not having any wings or other fly-like characteristics other than the ability of flight.
It’s all very silly, though not quite silly enough in places. For the most part, the film plays out like a regular police procedural with slight noir undertones despite the obvious strangeness of the mysteries at hand. Though there’s obviously something to be made about the origin of the Human Fly serum and the anger of the “war criminal” who feels himself betrayed by his country, it’s a fairly subtle comment on post-war resentment. However, attitudes to the practice of scientific research do seem to have shifted with the researchers investigating the imperceptibility device cast as the good guys (though no particular reason for their work is ever offered) who can be relied upon to help catch the “bad guys” who are making use of “bad technology” to do “bad things”.
A fairly solid B-movie though one which is perhaps a little too po-faced for its genretastic title, The Invisible Man vs The Human Fly is an interesting mix of noir crime thriller with a little science fiction and even a few horror trappings thrown in. Thanks to its straightforward approach it may prove a little dull for genre enthusiasts but does offer its own kind of surreal iconography and it’s difficult to forget the sight of a tiny, angry looking besuited man flying around and committing random crimes while an invisible opponent stalks him from the shadows.