The body of a 59-year-old male is found on the banks of a river. The stepson, Kazuo, confesses to his involvement but also implicates his estranged sister Nami. Two detectives, Okishima Keisuke and Kono Kaoru, then travel to the resort district of Beppu to stake out the house of Nami's ex-lover. They feel he may also be implicated in the murder and are certain that Nami will make contact. The detectives now wait.
| Actor | Role |
|---|---|
 Saki TakaokaKaoru Kono | Kaoru Kono |
 Ittoku KishibeKeisuke Okishima | Keisuke Okishima |
 Mirai YamamotoNami Matsushita | Nami Matsushita |
 Michiko KawaiAtsuko Sekikawa | Atsuko Sekikawa |
 Michitaka TsutsuiShinji Sekikawa | Shinji Sekikawa |
 Takahito HosoyamadaKazuo | Kazuo |
 Toshie NegishiNot listed | Not listed |
 Maho NonamiNot listed | Not listed |
 Yutaka MatsushigeNot listed | Not listed |
 Toru MinegishiNot listed | Not listed |
 Hiroko IsayamaNot listed | Not listed |
 Yousuke SaitoNot listed | Not listed |