When his mother's untimely death quickly follows his father's, a doctor begins to believe a killer may be targeting him and his amnesiac wife.

Kawamoto works and lives in a dilapidated pool hall which also serves as a rehearsal space for him and his friend Chikako. They seem contented to while away their hours doing nothing much at all. Meanwhile, an old pool shark meets some people from his past that he is none too happy to see again. How will this affect their private haven?