An erotic film about a woman seeking revenge after losing her boyfriend to a high school friend. During her high school days, Yoo-jin slept with her boyfriend and became pregnant. But her friend, Ji-yeon, steals his boyfriend, so she vows to get revenge on her. After 10 years, Yoo-jin is married to her incompetent husband, whom she really hates, and she still has not forgotten her desire for revenge. Then she found out that her husband got a job at Ji-yeon’s store, so she decided to take revenge by taking Ji-yeon’s husband away by seducing him and having sex with him. Starting that day, Yoo-jin promises that every day will be a bad day for Ji-yeon.
