What Happens at the End of Lesson in Murder?

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.

Kazuya Shiraishi's narrative builds toward a resolution centered on Sadao Abe (Yamato Haimura)'s journey. His days are generally gloomy.

How Does Sadao Abe (Yamato Haimura)'s Story End?

• Sadao Abe: Sadao Abe's arc reaches a definitive conclusion by the final act, with Kazuya Shiraishi delivering a resolution that feels earned after the film's 2h 8m runtime.
• Koshi Mizukami (Masaya Kakei): Koshi Mizukami's role in the climax proves pivotal to how the central conflict resolves.
• Takanori Iwata (Kazuki Kanayama): Takanori Iwata's character undergoes a significant shift in the final act.

What Does the Ending of Lesson in Murder Mean?

The ending of Lesson in Murder ties together the narrative threads involving Sadao Abe. Kazuya Shiraishi chooses a conclusion that prioritizes thematic consistency over surprise, resulting in an ending that rewards viewers who engaged with the story's central themes.