Shipwreck survivors found on the presumably uninhabited Infant Island leads to a scientific expedition that discovers a surviving native population along with the Shobijin, tiny twin fairy priestesses of the island's mythical deity called Mothra. After the fairies are kidnapped by an exploitative businessman named Clark Nelson, Mothra sets out to rescue them.
Tobe is a small-time crook who runs a prostitution business of blonde girls, as well as sells pornographic pictures. He frequents a cafe run by two women, one of them a young widow with a son. They like him and think that he is an ordinary office worker. One day, Tobe accidentally discovers pictures of an acquaintance, Kanzaburo, with a woman and sets out to blackmail him. He soon finds out that Kanzaburo died in a train accident but things may not be what they seem
Lonely youth Shinji meets Hatsue, a pretty pearl diver, on the beach and the two fall in love. But Shinji has a rival for Hatsue's affections, Yasuo.
