Private Detective Kiyoshi Mitarai and Miyuki Ogawa arrive in Fukuyama, Hiroshima Prefecture. They are interested in a case which involves discovered bodies. The bodies were found drifting in the Seto Inland Sea, where the currents repeat every 6 hours.
Hiroshi Tamaki
Kiyoshi Mitarai
Alice Hirose
Miyuki Ogawa
Hikari Ishida
Kanako Takizawa
Jun Kaname
Junichi Kosakai
Mitsuki Tanimura
Yoko Tatsumi
Eisaku Yoshida
Kunihiko Makita
Hisahiro Ogura
Yusaku Kuroda
Yasufumi Terawaki
Kenji Natsushima
