() is a 1960 tokusatsu science fiction-horror and mystery film. Produced by Toho Company, Ltd., the film was directed by Jun Fukuda, with special effects by Eiji Tsuburaya. Herts-Lion International Corp. acquired the western hemisphere rights to the film in January 1964 and planned to release it theatrically in the United States. This proposed U.S. theatrical release was aborted, and the film was subsequently syndicated to television. Besides being in black and white, the TV prints were identical to Toho's uncut international English version, dubbing and all. Plot At an amusement park's "Cave of Horrors" attraction, a man is stabbed to death and the killer leaves behind a gold-plated dog tag, a note asking the victim to meet them there, and a piece of Cryotron transistor wire. Reporter Kirioka, his childhood friend Detective Kobayashi, and the police led by Captain Onosaki begin investigating. They discover clues that lead them to a military-themed nightclub called the Military-Land Cabaret and its suspicious owner, Onishi. Kirioka, Kobayashi, and Onosaki eventually discover that 14 years prior, Onishi, the victim, intelligence agent Takashi, and Construction Corp. foreman Taki were all soldiers assigned to protect scientist/electrical engineer Dr. Kajuro Nikki's top secret experiments in creating electronic weaponry. However, the four used the scientist to transport stolen gold instead. They faced opposition from Lance Corporal Tsudo, who insisted that the gold belonged to Japan's people, but Onishi and his compatriots seemingly killed Tsudo and Nikki. They stored the bodies and gold in a cave and narrowly escaped after it was destroyed by dynamite. When the four returned a year later however, they discovered the corpses and gold had gone missing. In reality, Tsudo and Nikki went into hiding and lived in seclusion on a remote farm. Over the years, the scientist perfected a teleportation device capable of moving matter from one place to another in seconds. Unbeknownst to Nikki, a bitter Tsudo used the machine to elude the police while seeking revenge on his would-be killers by using the dog tags as a death sentence, sending his victims an audio tape or note detailing his intentions, and stabbing them with a bayonet. Kirioka, Kobayashi, and Onosaki trace Tsudo back to his farm, but are unable to prove he is the killer despite finding Nikki and his machines. Concurrently, Taki is killed while in police custody while Onishi hides in a remote coastal village. However, Tsudo knew he