Nameless Poison S01 E04 Father and Mother are Criminals - A Mysterious Threatening Call from the Perpetrator

Saburo Sugimura works for the PR department of a company which his father-in-law Yoshichika Imada runs. One day, Yoshichika Imada tasks Saburo Sugimura with work regarding a man named Nobuo Kajita. A complicated story unfolds from the request.