Yoon Chan-young

Genius neurosurgeon Seok is reunited with Deokhee, the professor who ruined her life long ago. Once, the two surgeons cared for each other more than anyone else. But now with nothing but hatred toward each other, Seok is furious that he is back in her life and vows to take revenge.

A zombie virus, which turns the infected violent, breaks out fast inside a school. Endangered students fight to survive and escape.