26-banme no Satsujin

Jean Pildu, a serial killer who killed as many as 25 people, was arrested by police as a wanted criminal and sentenced to death in court. However, the day before the execution day, he slipped on a banana peel and suffered a concussion, losing all his memory. Execution of the sentence is suspended since it is not possible to punish a person who has no memory of their misdeeds. Experts from various fields are mobilized to retrieve the memory of Jean Pildu.

(Source: natalie.mu, translated)