Don’t stand out. Blend in. Remain invisible. Those are the rules I lived by—the rules I thought would keep me alive. 

I was wrong.

Wynter Reeves is a law-abiding citizen of the State, a willing conformist whose daily life is haunted by terrorism and oppression. With the constant threat of death hanging over her like a shadow, she forces herself to live by a strict set of rules, all in the hope of ensuring she is never noticed. However, on her twenty-first birthday, as she prepares to take the placement exam that will determine her future within society, she begins to show symptoms of a rare and debilitating illness—ultimately attracting the attention of the State. Taken into the custody of the feared research facility known as the DSD, her worst nightmare becomes reality.

Ripped away from the life she knew, Wynter is forced to become the test subject of the mysterious Dr. Richter. Through him, she learns the true and terrifying nature of her condition: a disease called Ultraxenopia.