An American journalist is dispatched to Japan to interview a peculiar scientist in his secluded mountain laboratory, where he's conducting unusual experiments. However, the scientist becomes fascinated with the reporter's innocence and uses him as a test subject, administering a serum that gradually transforms him into a grotesque, two-headed creature.
Manster
A journalist in Japan receives a mysterious injection from a scientist, resulting in a bizarre transformation into a two-headed creature.
