Mariko, stifled by her lonely marriage, yields to the forbidden allure of her apartment complex’s night watchman, Shima. His raw confidence stirs a deep, primal hunger within her, leading them to a clandestine encounter. They abandon themselves to each other in a series of passionate, uninhibited couplings, each moment a stolen taste of liberation. Mariko discovers a powerful, sensual yearning she never knew she possessed, forever changed by their secret tryst.