After twelve happy years of marriage, Mariko and her husband have their peaceful life overturned by his boss Igarashi—though the husband eventually feels almost grateful for awakening his buried fetish. It begins when Igarashi covers for the husband’s ordering mistake and is invited to their home. Claiming it is a direct order from her husband’s boss, he takes Mariko to a porn film. Days later, unable to defy him, the couple accompanies Igarashi to the theater, where the husband is invited to watch what happens to his wife.