When her brother relapses—again—and disappears with the rent money, Darcy Andrews is forced to pawn the one thing that means the most to her. Her guitar, Darlene. Suddenly the plus-size teen's plans for a stress-free summer before senior year are washed down the drain. Now she must earn enough money to get her brother the help he needs and to buy Darlene back.

Enter Grey, the pawnshop owner's son. Popular, annoyingly hot, and inexplicably on stage with Darlene in his hands. Not only is he playing her guitar, but he kind of sucks at it. Before she can stop herself, Darcy is offering Grey guitar lessons, adding yet another complication to her plans—a summer romance with the last boy she ever thought would be interested in her.

It's all sex, drugs, and rock-n-roll. Except, not quite. She's down one guitar, the drugs are her brother's problem, and once school starts back, Darcy is afraid Grey is embarrassed to be seen with her. But when an opportunity to win money for her brother's rehab arises, she won't let all that stand in her way.