The still-beating disembodied heart of Frankenstein's monster is transported from Nazi Germany to Japan for experimentation during World War II. But the heart is believed lost when Allied Forces drop the bomb on Hiroshima. Several years later, a feral boy is running rampant through Hiroshima, killing and feasting on small animals. This causes alarm and arouses the curiosity of an American scientist, Dr. Bowen, and his assistant, who take the boy into their care.
Soon, the boy is growing at an alarming rate and exhibiting incomparable strength. They eventually conclude that this is somehow the mutated monster Frankenstein himself! But this town isn't big enough for two monsters. The destructive, underground-dwelling Baragon emerges to do battle with Frankenstein to the death!
Originally released as Frankenstein vs. Baragon.
DVD Features: Trailer, Deleted Scenes (International Version), Lobby Cards, Audio Commentary.
Spoken Languages: Japanese, English subtitles.