本片是改编自原著作者Jean Hegland 的同名小说，故事描述一对姊妹在不久的未来中，因面对各种分崩离析的社会问题，一同努力求生存的另类末日题材。

　　A doctor takes in a mysterious man who washes ashore at her remote cottage with a gunshot wound. Quickly they both learn the killer has arrived to f