Yuna, a married woman who had been in an office romance and married for several years. Her married life was harmonious with no complaints whatsoever... But one day, her husband started to be away from home frequently due to overtime work, and Yuna began to indulge in self-pleasure out of sexual frustration. Additionally, recently she has been feeling someone's gaze in the locker room and consults her boss about it. Afterwards, she learns the truth behind the invisible gaze from her boss... She is shocked and confused by the unexpected culprit, and an unimaginable nightmare befalls her.
