Grey Alcott kneels before the executioner in a pool of her husband's blood. Having broken the Color Code to marry outside of her caste, Grey has become a fugitive, and the penalty is death. But when a figure from her husband's past discovers her situation, a twist of fate finds Grey pardoned. Instead of facing execution, she is conscripted into the lowest caste of her society and condemned to live out the rest of her life as a Pinkcap, a prostitute of Citoyen. Relocated to a brothel in the heart of the capital, Grey is confronted with a choice: flee the country, or stay and dismantle the system that destroyed her life.