In a near-future New York City, still haunted by the scars of the Y-Plague, fear has become fashion, law, and religion. Twenty million are dead. The virus spared women, but every infected man died. Now society clings to control in the name of safety. Girls are watched. Girls are regulated. And the moment they turn thirteen, they are required to hide their faces behind masks, even though science has long since proven they pose no threat at all.

Most comply. Some even celebrate it. But when three girls begin to ask questions, they discover the dangers of resistance.