Although eighth grade is halfway over, Mikey never does anything halfway. So it's no surprise that when she develops a not-so-secret crush on Shawn Macavity, the heartstoppingly gorgeous star of the school play, she goes a bit overboard. Soon Mikey—Mikey?—has a stylish new wardrobe, and she's baking Shawn cookies, writing their initials on blackboards, even buying him a T-shirt emblazoned "I LOVE ME."

Fellow Bad Girl Margalo tries to get Mikey to turn things down a notch, but why should Mikey listen to her? After all, what does Margalo know about being in love? Or is Margalo hiding a romantic fantasy of her own?

In this fourth book in Cynthia Voigt's Bad Girls series, as Mikey and Margalo struggle to understand that funny thing called love, they find that boys may come and go, but bad girls are bad for life.