After returning to work after several years, Hanako, a married woman feeling a bit tired, receives a massage service coupon from a colleague... While entrusting her body to the soothing massage of the masseur Sagawa, she finds herself being teased at sensitive spots. Unable to resist the forceful caresses that assault her trembling body in pleasure, Hanako is violated. Sagawa, intrigued by her intense reactions to rough and violent sex, shows up at her home. Despite feeling fear in the face of this inescapable assault, Hanako is bathed in a stimulation unlike anything she has ever felt before...