During WWII, Germans obtain the immortal heart of Frankenstein's monster and transport it to Japan to prevent it being seized by the Allies. Kept in a Hiroshima laboratory, it is seeming lost when the United States destroys the city with the atomic bomb. Years later a wild boy is discovered wandering the streets of the city alone, born of the immortal heart.

• TOHO
• Henry G. Saperstein Enterprises Inc.
• Tadao Takashima
• Nick Adams
• Kumi Mizuno
• Yoshio Tsuchiya
• Koji Furuhata
• Jun Tazaki
• Susumu Fujita
• Takashi Shimura