A devoted wife, Tomoko (Nanami Hoshino), works as a geisha… Tomoko's husband is having an affair with Fuka (Yumi Kazama), who visits the inn as a guest… The two meet at the hot spring inn 【Kogouya】. Unbeknownst to her, Tomoko washes Fuka's back. In reality, Tomoko's husband had taken out a large loan and set up a cruel trap to make Tomoko and Fuka repay it. When the terrifying secret of 【Kogouya】 is revealed, Tomoko begins her life as a 'rope slave,' entertaining men with bestial desires…
