Running a small neighborhood beauty salon with her husband, Kasumi Shirakawa lived a quiet, modestly happy life. But everything changed when Sagawa, recently released from prison, became obsessed with her after a chance encounter on the street. He starts working temporarily at the couple's salon, gradually forcing himself on Kasumi and drawing her into a web of illicit pleasure. The tightening sensation of jute rope binding her body, her mature form writhing with each creak of restraint—her cries begging forgiveness from her husband lead deeper into the hell of SM. As love and domination blur beyond distinction, how far will she fall?