Best-selling writer Jung-Ho delves into the world of role play to write his next novel. Meanwhile, his wife Ji-Soo is always suspicious of her husband's fidelity. A sexy female university student named Hye-In then enters the picture.
Jung-Ho is strongly attracted to Hye-In who looks like his first love. Through play role, Jung-Ho makes her his muse and he buries himself into writing his new novel. His wife Ji-Soo then secretly reads her husband's new novel and becomes consumed with jealousy. She then she has sex with Jung-Ho.