Project Purgatory Beijing

A designer virus wipes out mankind, a handful of survivors take refuge in an abandoned complex.
The group believes that there is no one left. The world outside is a dangerous threat; a new species rises from the apocalypse called Radvics. These horrendous creatures roam the earth looking for human flesh to feed. The survivors do their best to lead a normal life in a bizarre and hostile world when a stranger appears from the wasteland.