Akiko (Masami Nagasawa) is a single mother and her son is Shuhei (Sho Gunji). Akiko casually has sex with other men, including Ryo (Sadao Abe). Akiko is the only person whom Shuhei can rely on. One day, Shuhei makes a shocking decision.
A mother searches for her missing son after a devastating calamity, only to realize that she has died and is now confined to a realm of restless spirits.