This drama tells the story of a vampire, Park Ji-sang who works as a health care provider in a hospital. Yoo Ri-ta can be the niece of the chairman of this board, a star doctor at the hospital and really a hot-shot heiress doctor. She's cold and snooty, but capable, and accustomed to being the golden girl. Lee Jae-wook is the chief, an gentle, inwardly ambitious man who will prove to be their biggest adversary.