Furuhata comes out of retirement to investigate a series of bizarre serial killings which would look like deaths by natural causes except for the notes found inside the victims' anuses.
A hot-headed rakugo performer steals his friend's story and then murders him when his theft is discovered. Furuhata will have to revisit the classic rakugo tales to figure out the young master's complicated alibi.
Media planner Kazuo Yura, the busiest man in all of Japan, murders a cheating politician while on the phone with his secretary. To crack his airtight alibi, Furuhata will have to rely on an old Hitchcock classic.
While staying at a remote onsen with an ill Furuhata and Saionji, Shintaro falls in love with a mysterious woman from Tokyo. The next morning, however, she is missing from her room and all the villagers say they've never seen her.
A jilted dentist kills her former lover while dressed as a man. Her alibi, however, contains one more element - a patient she was working on at the time of the murder, a patient named Furuhata Ninzaburô.
Furuhata is invited to visit his old school friend at his remote cabin in the woods but once he gets there he finds his friend acting strangely and denying he ever sent the invitation.
A famous conductor murders his mistress, a viola player, after discovering she is cheating on him. But who was her lover? He'll have to use his perfect pitch to find out.
A TV host murders her abusive Go player husband after he tries to turn her into an obedient housewife. However, her poor housekeeping skills prove to be her undoing.
After an accident put him in a wheelchair, a scientist's wife left him for his best friend. Now, he has a devious plan to kill him and frame her for the murder. Everyone falls for it except for Furuhata.
An archaeologist finds himself in a difficult position. After his mistress dies in the plane toilet, he has to pretend to be the co-pilot so that his wife (who is also on the plane) does not find out about his affair.
A group calling themselves SAZ hack the Tokyo Subway and fake a hijacking demanding a 10,000,000 yen payout. To ensure the success of the mission, one of their members infiltrates the control room pretending to be a police inspector.
Saionji is taken hostage by SAZ. Meanwhile, a drop for the ransom is arranged and the money is given to the fake inspector but Furuhata insists on tagging along.