When Gregory Tomasov wins the lottery, he turns his back on Southern California and takes his mother, his wife and three children back to his home town of McGuane, Arizona. But the idyllic small-town life he so desperately wants for his family doesn't materialise. Something else is waiting for him in McGuane instead.
Something strange. Something frightening. Something that is making the inhabitants of McGuane die.
Neither Gregory nor most of the other local residents understand what is happening to their town. But his mother and the other Russian members of her Molokan church do.
Uninvited guests have arrived in McGuane. Guests that cannot be seen. Cannot be heard. And cannot be stopped.