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 he is her ideal 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, Cassia begins to doubt the Society`s infallibility and is faced with an impossible choice: between Xander and Ky, between the only life she`s known and a path that no one else has dared to follow.