'I swim for every chance to get wasted - after every meet, every weekend, every travel trip. This is what I look forward to and what I tell no one: the burn of it down my throat, to my soul curled up in my lungs, the sharpest pain all over it - it seizes and stretches, becoming alive again, and is the only thing that makes sense.'

At fifteen, Casey Legler is already one of the fastest swimmers in the world. They are also an alcoholic, isolated from her family, and incapable of forming lasting connections with those around her.

Driven to compete at the highest levels, sent far away from home to train with the best coaches and teams, they finds themself increasingly alone and alienated, living a life of cheap hotels and chlorine-worn skin, anonymous sexual encounters and escalating drug use. Even at what should be a moment of triumph - competing at age nineteen in the 1996 Olympics - they are an outsider looking in, procuring drugs for Olympians she hardly knows, and losing her race after setting a new world record in the qualifying heats. After submitting to years of numbing training in France and the United States, Casey can see no way out of the sinister loneliness that has swelled and festered inside them.

Yet wondrously, when it is almost too late, she discovers a small light within herself, and senses a point of calm within the whirlwind of her life. In searing, evocative, visceral prose, Casey gives language to loneliness in this startling story of survival, defiance, and of the embers that still burn when everything else in us goes dark.