Haruka, a happy housewife, feels a shift in her husband's behavior as he climbs the corporate ladder. Her peace is shattered when she meets his boss, Mikuni. Using his power and the guise of 'protection,' Mikuni draws Haruka into a web of conflict. As her marriage destabilizes, Haruka is forced to choose between guilt and desire. On the seventh day of his relentless advances, her rationality finally snaps.