A pale-looking man, Kazuhiko, is being questioned by the police following the extremely bloody murder of a young woman. He begins his story with the day that two sisters, Akiko and Mayuko, moved into the house across from his. After helping the pair move in, he starts talking with the younger sister, and soon they become intimate. The ...

A police detective investigating a vicious string of homosexual murders discovers that the latest victim appears to be the married executive who was his college lover ten years before.