Baek Nam Bong is known as Dr. Frost. He became a professor in psychology at early age. He also volunteers at the university;s counseling center, where he meets the cheerful and meddlesome Yoon Sung Ah, who;s on the fast track to graduate early and becomes his teaching assistant. 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.