Kang Sara is in her last year at Art and Music college. The mystery of the old building is spreading around. With the help of the professor assistant,Kim Seokjin, they both try to solve this mystery together . Who is that boy following Sara? And why the lights turn off only at the 3rd floor when he is around? What happened at that old building years ago? A boy is haunting Sara's dreams and days. Why is he haunting her college building? And why did he chose her to find out? That's what she would try to know.
12 parts