A mysterious text turns a wealthy collector's life upside down, predicting an apocalyptic shift from extreme cold to deadly heat. Proved right by a family secret, she sells her prized collection and pools every resource to turn her home into an impenetrable fortress. Mocked by the world, she and her husband stockpile supplies and brace for the worst. When disaster strikes as foretold, their sanctuary becomes their only hope—but can love and iron walls keep the end of the world outside?
