Akagawa Jirou: Majo-tachi no Nemuri

After getting a weird call for help while in the office, Toshio has a dream about a girl from his childhood. When the next morning the papers say she has killed herself he's sure she was the one that called and he decides to go off to investigate the mountain village where she supposedly burned herself to death.

You work as a ordinary office worker. One day, you get a mysterious call to your office phone. A shaky female voice is on the other side almost whispering "....he...lp...me...murder...". Then the call ends. During the night you have a strange dream, a childhood friend is talking directly to you, lamenting her situation. You wake up an look at the newspaper. There is an article about the same childhood friend missing. In order to help, possibly save, your childhood friend, you set out into a village in the mountains where she has been working as a teacher..