Lesson in Murder

Masaya, a university student, drifts through gloomy days at a school he never wanted to attend. His monotonous existence is shattered by a letter from Haimura, a convicted serial killer on death row for nine murders. The killer confesses to eight but vehemently denies the ninth. Years ago, Masaya was a middle-school student and a regular customer at Haimura's bakery. This forgotten connection pulls the young man into an investigation of the final case, forcing him to sift through a past where the warmth of a bakery conceals chilling secrets.