The elderly father-in-law had devotedly entrusted the care of his son's wife, but despite his immobile body, his libido remained undiminished, hiding a cruel old man's true nature. Through daily caregiving, his sadistic side gradually emerges, tormenting and seducing his daughter-in-law. On sleepless nights, their passion becomes a new stage for nightly trysts. An adult tale where lust and caregiving intertwine—a nocturnal chronicle for mature audiences.