When the police find Eiki Tauchi dead along with his last words, the death is easily ruled as a suicide. In a separate case, the widow Ryuko Tobishima continues to don a black veil, fifty years after her husband was killed in a car accident. However, looks are deceiving as further investigations reveal that the victims were actually murdered-by vengeful family members. Kotoko and the yokai unlock the guilt and shame behind the locked-room mysteries. And Mecha Kotoko makes an encore.