Hoshikamo yearned to become a private detective and he now works as a private detective. He is not good at communicating with women. Hoshikamo once worked at a big private detective agency, but he now he runs his own private detective office. His office is situated within his grandmother's recycle shop. Hoshikamo solves various cases with his assistant Tsugumi Karato. He first met Tsugumi Karato when she was his client. She hired him to help her with a stalker.
The forbidden technique of "Dark Psychology" is a method of using casual conversation, hints, words, and behaviour to manipulate the thoughts and emotions of others to control them as you wish whether that be to good and innocent ends or to satisfy even the darkest desires of the heart.
Through a series of never-before-seen home videos, police evidence and interviews, this documentary series examines the circumstances surrounding the brutal murder of two police officers. But what motivated the lone suspect in the case, John Kyle? How did he avoid the police arrest for 8 years? And more importantly, can occult powers play a role in this mystery?
Nishimura Toshiro works at a production company as a drama director. He has been having a hectic time, discussing the script for an ongoing drama with the female producer who is not satisfied with it. The proud and elitist Toshiro intends to make interesting works. But he does not realise that his mindset is elitist and old-fashioned, and that he tends to be chauvinistic. His life has gone smoothly so far and he believes he has everything. Toshiro proposes to his 29-year-old girlfriend, Kondo Akiko, whom he has been dating for three years. Well, from his perspective, he proposed because he feels responsible for her. Akiko is a modest-looking woman who has been supporting the busy Toshiro, doing the housework and cooking perfectly. But the day after his proposal, Akiko leaves the engagement ring behind and vanishes all of a sudden.