Joo Joong Won (So Ji Sub) is a cold and ambitious CEO, who measures all human relationships through money. Tae Gong Sil (Gong Hyo Jin) is a sensitive assistant, who suffers from insomnia, due to her ability to see ghosts after an accident. Joong Won will learn to trust Gong Sil and falls in love with her.
A drama about a genius psychology professor that cannot feel certain emotions due to an injury he sustained as a child. He uses his deductive reasoning to help procedural teams both officially and unofficially to solve crimes on the side.