In a world where turning sixteen means transforming from an "ugly" into a flawless "pretty," Tally can't wait for her birthday. The operation promises a life of glamour and endless fun in a high-tech paradise.

But when Tally befriends Shay, who isn't sure she wants to become a pretty, everything changes. Shay's sudden disappearance forces Tally into an impossible dilemma. The authorities give her an ultimatum: find and betray your friend, or remain ugly forever.

Torn between loyalty and ambition, Tally's choice will uncover dark secrets lurking beneath the flawless facade of her world. What will she sacrifice to learn the truth? And is becoming pretty worth the price?