Due to her husband's reduced income and worsening household finances, the wife registers with a housekeeping agency and is dispatched to a luxurious mansion located on a hilltop in the city as a "maid." The estate is filled with expensive paintings and artworks, and while the wife is amazed by them, she cheerfully begins cleaning the interior. Always maintaining a neat, clean appearance and a bright smile, her beauty and charm captivate the mansion's owner—a wealthy man. Unable to suppress his hidden desires, he begins seducing her with tempting words. Those words become the catalyst that drastically changes her everyday life.