A widow in mourning clothes, I want...

Izumi had just lost her husband Nishimura. Nishimura had fallen down the stairs while drunk. One day, she found a tape with a woman's voice among his belongings. Izumi suspected it was evidence of an affair. A few days later, Izumi met Nishimura's friend Fujii and played the tape for him, asking if he knew who Nishimur…