In the wake of a deadly pandemic, three-year-old Zoey is left alone, trapped in her house, wondering why Mummy won't wake up; why Daddy never came home; why the world outside her window has stopped. But as the dead begin to rise, she won't be alone for long.
Across the country, in a rural Australian community, sisters Merry and Claire think they're saved when the capable, but controlling, Mr Blake rescues them from a frenzied 'grinner'. But as Merry discovers the price she's paid for protection, she's forced to choose between her safety and her sanity.