You can read the Goodreads summary here.
Cassia lives in a world where seventeen year olds are matched with each other in a special ceremony that they all look forward to. When Cassia is matched with her best friend, they're both happy, but when Cassia's SD card thingy flashes the face of a different boy for a second, she begins to question the whole ceremony - especially when she falls in love with the other boy, and he with her. Maybe Society isn't as cracked up as it's supposed to be.
Awesome book. Awesome. I loved the premise and the plot - this was a true dystopian. People thought they had perfected society and it seems to be pretty perfect for Cassia, too, until she starts to realize that there are no decisions one can make for oneself. I loved the character of Cassia. She didn't just jump in and say, "Hey, things aren't right!" and then immediately start out on a quest to "fix" it. It took her awhile to get that far, which seemed a lot more realistic.
Four stars. What would have made me give it five? More sexual tension between the three main characters. Still, it was a fantastic read and now I'm looking forward to the second book in the trilogy, Crossed, due November 1st.