Furankenshutain tai Baragon

A group of American scientists, including Dr. James Bowen (Nick Adams) and Dr. Sueko Togami (Kumi Mizuno), investigate a mysterious boy who appears to be the result of the immortal heart of Frankenstein's monster, found in a Hiroshima laboratory after World War II. The boy, known as Frankenstein, possesses a strong resistance to radiation and grows to monstrous size. As the scientists try to understand and help Frankenstein, a subterranean monster named Baragon is also wreaking havoc in the countryside, leading to confusion and danger for both Frankenstein and the scientists.