Stranded after a plane crash, Shou, Megumi, Miki, and Ai find their isolated island to be a crucible of raw desire. With no hope of rescue, they give in to their deepest urges, surrendering to a primal, uninhibited existence. Their bodies become the only comfort, and intense, frequent couplings blur the lines between survival and pure ecstasy, forging a new reality built on shared, desperate pleasure.