Kubi Ira Zu Kazoku Sosa Kyokucho Suo in Madoka (Kobunsha Bunko)

[Machine Translation] In the newly established Family Investigation Bureau of the Ministry of Home Affairs, Lieutenant Katsumi Koshiro is assigned to investigate the gruesome poisoning of the Count Kukiinashi family under the leadership of Enka Suoin, the head of the bureau. Koshiro is constantly at the mercy of Enka's unique style of investigation amidst the apparent feuds amongst the family members of the Count family, all of whom are known for their eccentricities. The situation then develops into a series of decapitations and murders! The beautiful investigator takes on the gruesome and bizarre murders that unfold in Tokyo during the Taisho era.

内務省に新設された華族捜査局で、警部補の来見甲士郎は局長周防院円香の指揮の下、九鬼梨伯爵家で、起きた陰惨な毒殺事件の捜査を行うことに。曲者ぞろいの伯爵家一族に確執が見え隠れする中、円香の独自の捜査スタイルに甲士郎は翻弄され続ける。そして事態は首切り連続殺人に発展!大正時代の東京を舞台に展開する陰惨で奇怪な殺人に、麗しき捜査官が挑む。