Shannon Carter never considered herself much of a theater person. Not like her two BFFs, Elise, an actress, and Fatima, a techie. Shannon's always been content to stay backstage, helping wherever she can. But when the director of the summer musical hears Shannon singing, he encourages her to step out of the wings and into the spotlight.

At first, Shannon is hesitant. As a twelve-year-old with obsessive-compulsive disorder, she depends on routine. But when she braves the audition, she discovers that center stage is the one place where she doesn't feel anxious. She lands a lead role, and everyone in her life is ecstatic . . . except Elise.

To make matters worse, Shannon's eccentric and opinionated grandmother moves in with her and her mom after a fluke house fire. As opening night approaches, Shannon feels pressure to save her friendship with Elise, to make Mom and Grandma Ruby act like grown-ups, and to follow the old theater adage The show must go on.