The mayor is found dead in the river in a small town known for its hot springs. It's assumed that he fell to his death, but his nephew just cannot understand why his uncle would have gone there by himself to begin with. When he cleans up his house, he finds his uncle's diary and tries to find out what exactly happened.
| Writing | Seicho Matsumoto | Original Story |
| Writing | Shogo Kashida | Screenplay |
| Directing | Masaki Nishiura | Director |
| Camera | Shin Miyata | Director of Photography |
| Lighting | Yoshio Tashiro | Lighting Technician |
| Sound | Daisuke Nakayama | Sound |
| Production | Hiroko Takeda | Producer |