An elderly woman, Ume Matsumoto, informed the First Investigation Department that her son Hirasaka, who runs a shoe store, had disappeared. The detectives had a bad feeling which hit the mark, an unidentified drowned body is identified as Hirasaka. Some prime real estate he owned was also mysteriously sold. Suspecting that this is a planned murder and fearing the escape of the criminal, the Department begins to investigate secretly, without creating an investigation headquarters.
as Detective Nagata
as Detective Kaneko
as Detective Yamagata
as Maruyama
as Chief Investigator
as Cleaning Shop Owner
as Folk Song Sisters
