Rae, a single mom and night-shift taxi driver, gets trapped in a sudden zombie outbreak on Halloween night. A wounded delivery guy shoves a military-green transport case into her cab, and moments later, her son Mikey and the numbered girl Vera X-09 are seized by white-helmet operatives from B-7 Lab. Fighting her way through quarantine zones, docks and the B-7 facility alongside scavenger Kane, she learns the box is the master key — and she herself is the legendary Zero Patient immune carrier. Bitten but never turned, she unlocks the power to command every undead in the city. On the overpass, she stops the full-city purge ignition, takes down Marcus, and fully awakens as the Queen of the Dead. Scavengers and thousands of zombies kneel before her, while the fleeing corporate fleet broadcasts her coronation across the whole city.
