Plum Kettle does her best not to be noticed, because when you're fat, to be noticed is to be judged. With her job answering fan mail for a teen magazine, she is biding her time until her weight-loss surgery. But when a mysterious woman in colorful tights and combat boots begins following her, Plum falls down a rabbit hole into the world of Calliope House — an underground community of women who reject society's rules — and is forced to confront the real costs of becoming "beautiful." At the same time, a guerilla group begins terrorizing a world that mistreats women, and Plum becomes entangled in a sinister plot. The consequences are explosive.