Rei Hayami is a housewife living in an apartment complex, who left her job to settle into a quiet domestic life after marriage. However, a former subordinate reappears and gradually draws her into his seduction. As unfulfilled desires begin to stir within her everyday routine, she falls under the spell of a man obsessed with BDSM. Unable to comprehend her own emotions, she finds herself helplessly entangled in a dangerous relationship, sinking deeper despite realizing she's caught in a trap. What fate awaits her in the end?