In the Society, officials decide ... who you love, where you work, when you die. Cassia has always trusted their choices. It's hardly any price to pay for a long life, the perfect job, the ideal mate. So when her best friend appears on the Matching screen, Cassia knows with complete certainty that he is the one ... until she sees another face flash for an instant before the screen fades to black. Now Cassia is faced with impossible choices : between...

In search of a better life, Cassia joins a widespread rebellion against Society, where she is tasked with finding a cure to the threat of survival and must choose between Xander and Ky. Cassia, Ky, and Xander return to the Society to save the one thing they have been denied for so long, the power to choose.