The film tells the story of a plague that turns most humans into bloodthirsty species, and survivors must find the source of the infection and seek a cure.
In the story of "Patient Z" (provisional translation), a super-powerful virus has invaded the entire earth and mutated a new species with severe violence. And a human survivor who was immune to the virus found that he could communicate with these mutants. In order to save his infected wife, he was determined to lead everyone to "Patient Z" and seek an antidote to the virus
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