Her husband is only capable of normal sex, while she secretly yearns for BDSM. One day, she secretly applies to be a bondage model for an SM magazine. However, when her husband discovers the magazine and realizes what she's done, overwhelming jealousy consumes him, dragging his mind into darkness. Under her husband's watchful gaze, she is bound by ropes, enduring relentless torment as her shame gradually transforms into pleasure. Tears stream down her face from the fierce whip lashes, yet she gains lewdness and a twisted sense of freedom. Witnessing his wife's transformation, the husband begins to act differently—shocked by her metamorphosis, his own desires and jealousy intertwine, giving birth to an entirely new relationship.