Quentin Jacobsen, 17, has been in love with his next-door neighbor, Margo Roth Spiegelman, for his entire life. A leader at their Central Florida high school, she has carefully cultivated her badass image. Quentin is one of the smart kids. His parents are therapists and he is, above all things, "goddamned well adjusted." He takes a rare risk when Margo appears at his window in the middle of the night. They drive around righting wrongs via her brilliant, elaborate pranks. Then she runs away (again). He slowly uncovers the depth of her unhappiness and the vast differences between the real and imagined Margo.