In a massage parlor in Tokyo staffed by married women, young, beautiful, and healthy female therapists provide treatments. The therapists are fair-skinned and well-built, possessing a beauty so striking that anyone would turn their head upon seeing them on the street. Inside the private room, alone together, physical contact intensifies emotions, leading to passionate encounters while wearing only thin treatment lingerie and towels. As a result, these married women forget their husbands and daily routines, becoming emotionally consumed by illicit sex with the men before them, regaining their confidence as women through relationships with men other than their spouses. However, this secret side job is risky, constantly accompanied by secrecy and anxiety.