This dystopian series begins with Cassia's Matching ceremony. She has always trusted the Society to make the right choices for her and when Xander's face appears on-screen, Cassia knows 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 says that it's a glitch and to focus on her life with Xander, but Cassia can't stop thinking about Ky. As she finds herself falling in love with Ky, she realizes that the Society isn't infallible and she must make a choice between the two.