An authentic social mystery starring Koizumi Kotaro! A murder case in Chiba. A murder case in Chiba that closely resembles the serial murders of seven years ago. However, the murderer has already committed suicide in prison. Is he falsely accused? Is it a copycat? The detective uncovers the shocking truth.

• Miori Takimoto
• Katsumi Takahashi
• Aki Maeda
• Masaki Miura
• Shunsuke Tanaka
• Tomoya Maeno
• Mari Nishio
• Jun Hashimoto