Summary: Actually the sixth installment of the Groper Train series, the film begins in earnest as a dying war veteran with knowledge of the location of the world's largest black pearl utters a mysterious clue to his wife Matsuko with his dying breath - "pussy print". Matsuko hires a world famous detective named Ippei to help her find the pearl, but he runs out of ideas after a particularly intimate investigation of young girls on a crowded train. Enter mystery writer Seichi Matsuki, who eventually helps reveal the surprising location of the pearl, but not before a series of double crosses and sexual escapades.
Chikan densha: Shitagi kensatsu
1984
Japan
Groper Train: The Search for the Black Pearl
