This film depicts the erotic relationship between a stepmother and her sons. The story follows 10 sons, each harboring secret desires for their stepmom, as they pursue incestuous encounters. The stepmother is a popular Thai traditional massage therapist who earns client appointments by sucking their cocks. While their father is away on a business trip, the sons turn their attention to their stepmother's body, confessing their feelings and demanding sex. Currently separated from her husband, the stepmother spends her days indulging in masturbation. In an effort to heal their mother through physical intimacy, the sons one by one engage in incest. After the stepmother confesses she had sex with the eldest brother, the other sons become overwhelmed with excitement and insist on having sex with her. Their intertwined desires lead to an increasingly erotic series of events.