Cassia has always trusted the Society to make the right choices for her: what to read, what to watch, what to believe. So when Xander's face appears on-screen at her Matching ceremony, Cassia knows with complete certainty that he is her ideal mate...until she sees Ky Markham's face flash for an instant before the screen fades to black. The Society tells her it's a glitch, a rare malfunction, and that she should focus on the happy life she's destined to lead with Xander. But Cassia can't stop thinking about Ky, and as they slowly fall in love, she is faced with an impossible choice: between the only life she's known and a path that no one else has dared to follow. This futuristic coming-of-age novel is based on a classic premise: that of a future society that seems to have solved the problem of human happiness by making every "right choice" for its citizens. Readers will see the flaw in eliminating free will from the very first pages, but they won't be able to look away as Cassia discovers two truths as old as humankind: that there is no joy without personal liberty, and love is a mystery that can be embraced but never solved.