Black Butterfly Murder - File 4

Synopsis

Shimon Madarame is also found dead. The police pin down Miyama as the suspect, but Hajime uncovers that the true culprit is someone else. Midori, Shimon's wife, was once in a relationship with Suga, a researcher studying the luminous butterfly. But Suga committed suicide, and Midori married Shimon, the man who discovered the luminous butterfly's chrysalises. The deep hatred running beneath the serial killings traces back to an incident 25 years ago.