Kasumi is in the midst of an affair with Ishiyama, one of her husband's clients. When Kasumi and her family visit Ishiyama's villa in Hokkaido, she plans to abandon them to be with Ishiyama. The next morning, her daughter Yuka disappears, which throws Kasumi's life into turmoil. Years later, Yuka remains missing, and Kasumi journeys back to Hokkaido with Utsumi, a terminally-ill former detective, and tries to follow any leads she can.
| Actor | Role |
|---|---|
 Yuki AmamiKasumi Moriwake | Kasumi Moriwake |
 Shunsuke MatsuokaJun-ichi Utsumi | Jun-ichi Utsumi |
 Tomokazu MiuraYohei Ishiyama | Yohei Ishiyama |
 Kumi NakamuraNoriko Ishiyama | Noriko Ishiyama |
 Ikkei WatanabeMichihiro Moriwake | Michihiro Moriwake |
 Minori TeradaKasumi's father | Kasumi's father |
 Michiko HayashiKasumi's mother | Kasumi's mother |
 Hideo MurotaMasayoshi Izumi | Masayoshi Izumi |
 Moeko EzawaTsutae Izumi | Tsutae Izumi |
 Tarō SuwaMizushima | Mizushima |
 Sabu KawaharaAsanuma | Asanuma |
 Kaori MizushimaKumiko Utsumi | Kumiko Utsumi |
 Miako TadanoNot listed | Not listed |
 Takashi SasanoNot listed | Not listed |
 Masahiro TodaOfficer Wakita | Officer Wakita |