Atsushi Sakahara, a victim of the 1995 sarin gas attack in Tokyo's subway system, travels with Hiroshi Araki, an executive of Aleph, formerly Aum Shinrikyo, the attack's perpetrators, visiting their respective hometowns and the university both attended to learn why Araki joined the infamous organization and why, still, he remains an executive member of the cult, even though he was not directly involved in any of the crimes.