A geek is left home alone and his negligence causes the spread of a deadly contamination that infects the entire local population and turns them into flesh-eating zombies.
| Actor | Role |
|---|---|
 Ryoo Seung-bumYoon Seok-woo | Yoon Seok-woo |
 Go Joon-heeKim Yoo-min | Kim Yoo-min |
 Kim Roi-haSeok-woo's father | Seok-woo's father |
 Lee Kan-heeSeok-woo's mother | Seok-woo's mother |
| HHwang Hyo-eunSeok-woo's sister | Seok-woo's sister |
 Don LeeBully | Bully |
 Jung WooJoong-dong | Joong-dong |
 Choi Deok-mooncook | cook |
 Kim Moo-yulJi-ho | Ji-ho |
 Bong Joon HoLee Joon-ho | Lee Joon-ho |
| PPark Ho-youngPark Ho-young | Park Ho-young |
 Yoon Je-moonJoo Je-moon | Joo Je-moon |