When the outer skin of civilization is peeled off, only the rotten backbone is exposed.
The end of the world is coming, and a strange virus has cut off human beings' moral and empathy modules. The infected did not become zombies, but became demons who retained high intelligence and memory but were dominated by primitive violent desires.
Construction worker Zhao Gang was accidentally infected while escaping, but miraculously retained his sanity and became a "wild mutant" wandering on the edge of humans and ghosts, evolving by devouring his own kind. He formed an alliance with Lin Xiao, a vengeful woman who held the virus key (sister's head) in her arms, and was shocked to realize that this was not a disorderly chaos, but a hierarchical "malicious ecology": from the cannibal cold storage to the elite "Crusader" to the "temple" of the living arena, everything was controlled by the perfectly evolved "tyrant" Zhao Zilong.
In order to survive and take revenge, the two voluntarily threw themselves into hell and disguised themselves as demons to sneak into the arena. Zhao Gang used violence to fight violence and completed the evolution of flesh and blood in near-death fights; Lin Xiao used his body as bait to play games between madmen and monsters.
They have only one goal: to kill through the layers of dark biological chains, climb to the highest broadcast tower in the city, and send out the final roar to this crazy world.
In this scorched earth, if you want to live like a human being, you must be more cruel than a monster.