College student Yu (Kobayashi Yuto) becomes friends with Fumie (Suzuki Sawa), a married woman who often comes to his store, but their relationship soon develops into something more. With very little romantic experience, he finds himself absorbed in this adult woman.

When a UFO crashes and releases radiation, the dead begin to rise in a cannibalistic frenzy. A group of soldiers and civilians make their way to a hotel and must fend off the zombie hordes.