Hana, a young wife who lives with her husband and father-in-law, often spends time alone with her father-in-law, who is unemployed. One afternoon, her father-in-law, unable to resist Hana's voluptuous body, suddenly rapes her. Although she says it will only be once, she ends up being raped and creampied every time her risky days come around. Although she hated it, the young wife soon becomes addicted to the rough and intense sex that is different from that with her husband.