Yariman (2008)

Kenichi was dating Miki, but he started to get tired of her and could not get an erection even after having sex. On his way home from Miki's house, Kenichi meets his high school sweetheart, Yoshiko, again. Inviting Yoshiko to the apartment, the two fall in love like the first time twelve years earlier. The next morning, Yoshiko leaves the room without telling Kenichi. Kenichi notices and follows her, but Yoshiko is hit by a truck on a nearby street and dies. Kenichi, who was contacted by the police, was told that Yoshiko was single and had no family or anyone to take care of the remains, so he steals her remains. And Kenichi went to Niigata where Yoshiko lived. Miki, who came to her apartment and sensed something suspicious. When he visits Yoshiko's apartment, he is told that she was bringing different men by turns. The next day, Kenichi visited a small inn where Eriko, Yoshiko's former colleague, was staying. Eriko says that since Yoshiko was abandoned by her partner, she has been able to sleep with anyone.