Thirty-six-year-old housewife Son Yeon-su has endured an abusive marriage for the sake of her son. One day, she stumbles upon an illegal online gambling site—only to discover it’s run by Woo-jin, her son’s high school friend. What begins as a transaction turns into a dangerous partnership. Living as a submissive wife, a criminal accomplice, and a mother, Yeon-su starts risking everything. Is this love, or her only way out? For the first time, she bets on her own life.