Ji Sun Woo is an associate director of a family clinic with a perfect life - a great career, married to a handsome young man, mother to an adorable son, and surrounded by friends who seem to care. She couldn't be happier. Lee Tae Oh, her husband, is an aspiring film director. However, when temptation leads him to betray Sun Woo, along with the people around her, she is pushed towards revenge. The dangerous twists of a married couple's life unfold.