Keiko Kaga

A high-school girl with a hobby of documenting stuff with her video camera films a woman getting raped in a dirty alley. She gets in contact with the rapist and starts blackmailing him to let her film when he assaults his victims, whom he chooses because they are all patients of his psychologist sister, and he's been eavesdropping on their sessions.

Anthology film.

A middle-aged widow becomes an SM call girl to pay off the debts accumulated by her yakuza husband. She's a depressed woman, merely going through the motions of existence, subjected to every cruel whim concocted by her clients. She's dedicated to the misery - even finding comfort in it - stumbling through life like a zombie.