A married woman named Aoi lives humbly with her husband in a small apartment in Tokyo, which they bought on loan. One day, a man named Saiji, Aoi's former classmate and ex-boyfriend, visits her. Saiji used to be a serious man but had gone astray and was now like a small-time thug. Hearing rumors that Aoi was happy, jealousy drove him to resentment, and his emotions exploded. Saiji even involved his yakuza superiors and kidnapped Aoi. After tormenting her thoroughly, Saiji and his crew tattooed Aoi's body with the mark of debauchery!
