Invited by her husband's colleague Sawayuki to "have a drink with your husband," Rena finds herself summoned to her own home. But her husband never shows up, leaving her alone with Sawayuki. Then, a message arrives from her husband—its contents shocking her. She soon realizes Sawayuki lied to lure her there. Having secretly loved Rena for a long time, he gives in to his intense desires, binding her tightly with rope and taking her forcefully. He callously attaches sex toys to her immobilized body and leaves her helpless, repeating these cold, calculated acts. As her affair with her husband's coworker deepens, Rena's heart begins to waver. Drawn into a whirlwind of conflicting emotions, her unraveling psyche captivates the viewer.