Dr. Shin, an expert on women's issues, is often away from home for seminars. Sujin, feeling a growing emptiness, travels to Gangneung where her husband is giving a lecture. However, even there, her husband is absent. In reality, Dr. Shin misunderstood and avoided Sujin due to a phone call from a mentally ill person during their honeymoon. While strolling on the beach, Sujin meets Hyeop, a pure young man, and has a pleasant time with him. When a mentally ill person appears at the hotel where Sujin is alone due to her husband's seminar, threatening to assault her, she runs to Hyeop. The more she meets Hyeop, the more she decides to divorce due to his humanity. As Sujin leaves the house, the mentally ill person reappears, and she kills him. She shouts to Dr. Shin that she is another person, and is then taken away.