After observing a hauntingly familiar abnormal CAT scan of a 13 year old girl, radiologist Nina Evanko battles to find the source of the young girl's sleeping disorder. What she discovers is darker and stranger than she could have imagined.
Kang Eun-kyung, who has come for her teaching practicum, encounters members of the Black Sky black magic club, who are ranked first in the national mock exams. She discovers that there is a witch behind the girls. To retrieve the souls that the witch has
