Inspector Muta's Incident Files: Yokohama to Kushiro Field. The Mystery of the Triple Murder That Only Marimo Knows. [牟田刑事官事件ファイル　横浜～釧路湿原 マリモが知る三重殺人の謎…]

A woman is discovered strangled inside a car, and Inspector Muta of the Yamashita police station hurries to the scene! The relationship between the murdered woman and a suspect whom the new Assistant Inspector, Iwaki, has been pursuing for one year will soon become clear...