Hida, Trick Mansion Murder Case - File 1

Synopsis

At Inspector Kenmochi's request, Hajime and Miyuki accompany him to Kuchinashi Village deep in Hida. Shino, Kenmochi's childhood friend who married into the prestigious Tatsumi family as a second wife, has asked for help. A threatening letter has arrived vowing to take the life of Yukimaru, named as the next family head. That night, in the locked "Double-Doored Room," the headless body of a kuroko-clad man — Akanuma — is discovered.