The film is going to be the first movie adaptation in the novel series and is set in Shimada's hometown in Fukuyama City, Hiroshima where Mitarai will investigate a case which happened in the Seto Inland Sea that is related to the tides. In the original novel, Mitarai investigated the case with his buddy Ishioka but the director Izumi Seiji decided to come up with a new character to replace him i.e. Hirose's character Miyuki.
The filming which started at the end of last month, is currently in progress at places such as Innoshima in Hiroshima Prefecture and expected to last till early June.
Co-stars include Ishida Hikari, Ogura Hisashiro, Kaname Jun, Tanimura Mitsuki and Yoshida Eisaku.
Source: Sanspo 1 / Sanspo 2