A detective breaks all rules of ethical conduct while investigating a colleague’s involvement in drug pushing and Yakuza activities.

The Yamaoki family moved from Kyoto to Tosa around the turn of the '50s; local school teacher Hirao becomes involved with Yasuko, sister to Sumio.

Based on a novel by Bo Nishimura, the film is about an extramarital affair between the wife of an estate agent and a 22 year old man.