A high-priced call girl catering to Yakuza captains and ostensibly "respectable" heads of industry makes her way through the smutty sex underground of the titular city, witnessing and experiencing sexual degradation, confusion, and despair. A searing, disturbing, and extremely graphic indictment of the twin hypocrisies of excessive materialism and sexual puritanism, which combine to create an exploited underclass of sex merchants forced to feed the perversions of their powerful tormentors.