Due to his father's remarriage, a modest and reserved woman joins the household as the stepmother. The son becomes increasingly intrigued by her, his fantasies growing as he imagines an illicit affair with his new stepmother, fueling his desire. While concealing the truth about his relationship with his real mother through lies, he aggressively pursues the stepmother's body. Though she resists, her body unconsciously responds to his advances. As he forces her to submit to his unreasonable demands, her gradual surrender reveals her own hidden temptation, driving the story into deeper, more intense territory.