Ifu Asami Mitsuhiko Saigo no Jiken (First Part)

[Machine Translation] A letter arrives at the Asami household. It was an invitation to Mitsuhiko Asami's 34th birthday party, which was planned without his knowledge. One of the promoters, Chieko Motozawa, visits the Asami family accompanied by a beautiful German violinist, Alicia Reichenbach. She asks him to be her bodyguard when they perform at "Schubertiade," a town-wide music event in Tamba Sasayama. Alicia was told by her grandmother to take care of some sheet music entrusted to her by a man named "Inve" in Tamba Sasayama. Asami refuses the request at first, but his brother Yoichiro, who is the chief of the Criminal Investigation Bureau, gives him a special order and he goes to the site. Mitsuhiko, the second son of the Asami family, is the epitome of a wise older brother and a foolish younger brother, but a past pact with the Asami family is hunting him down! The curtain opens on one of the greatest chain of mysteries in history, set in Karuizawa, Tanba-Sasayama, and Europe. A shocking end to the story of a nationally renowned detective.

浅見家に届いた一通の手紙。それは、本人が知らない間に企画された、浅見光彦34歳の誕生日パーティの案内状だった。発起人の一人、本沢千恵子は美貌のドイツ人ヴァイオリニスト、アリシア・ライヘンバッハを伴い浅見家を訪れる。丹波篠山で町をあげて行われる音楽イベント「シューベルティアーデ」に二人が出演する際に、ボディガードを頼みたいというのだ。アリシアは祖母に、彼の地で「インヴェ」という男に託された楽譜を預かってくるようにと言われていた。一度は断る浅見だが、刑事局長の兄、陽一郎からの特命もあり、現地に赴くことになる―。賢兄愚弟の典型、浅見家に育った次男の光彦を過去の盟約が追い詰める!軽井沢、丹波篠山、ヨーロッパを舞台に史上最大級の謎の連鎖の幕が開く。国民的名探偵が迎える衝撃のラスト。