Reiko Sawamura, a skilled and attractive woman who excels both at work and in appearance, is the wife of a department chief. Her subordinate, Reiko Sawamura, secretly harbors feelings for her, but his jealous wife discovers this and devises a plan to torment Ayumi. First, she seduces the chief, bringing him under her control. Then, she blackmails Ayumi and maneuvers her into a vulnerable position at the company. She records the entire process and exposes it to Ayumi, driving her to the edge. Finally, she takes Ayumi to witness her secret rendezvous with the chief, leading to an intense, dramatic swapping scene—unfolding a complex and twisted tale of betrayal and domination.