an unknown disease has taken over the world. No one knows what caused it. People who get infected aren't the same anymore. There are violent monsters that some used to be people, others just randomly appeared. There are survivors: Cha Hyun-soo-infected but somehow immune Lee eun-hyuk-survivor Pyeon sang-wool gangster but survivor Seo yi-kyeong Lee eun-yoo Jung jae-heon And many more. Will you survive or will you become infected?