Living in a world where you get plastic surgery that makes you pretty at the age of 16, Tally finds herself sneaking out to New Pretty Town to visit her best friend- Peris. When things go wrong, she meets a stranger just like her. Always pulling reckless pranks, breaking the rules, Tally and Shay become best friends in no time. However, Shay's rebellious rules lead Tally to a life she's never seen before. She discovers a world outside of becoming a pretty and she's given a tough choice- will she preserve the unnatural but fascinating world- or will she raze it?