خلاصه داستان : فیلم ژاپنی درس قتل داستان در مورد مسايا کاکئی دانشجویی است که دانشگاهش آنطور که همیشه آرزو داشت نیست و روزهایش معمولاً یکنواخت و دلگیر میگذرد یک روز نامه‌ ای از قاتل زنجیره‌ ای یاماتو هایمورا به دستش میرسد که به هشت قتل اعتراف کرده اما ادعا میکند آخرین قتل را انجام نداده مسايا که...

Masaya is a university student, but he attends a school that's not his ideal school. His days are generally gloomy. One day, he receives a letter from serial killer Haimura. He was convicted for nine murders and received the death penalty. Back when Haimura was committing his murders, he ran a bakery store. At that time, Masaya was a middle-school student and a customer at his bakery store. According to the letter, Haimura confesses to having committed eight murders, but he insists that he did not commit the last murder. Masaya begins to investigate the last murder case involving Haimura.