Quentin Jacobson has always loved Margo from afar. So when she climbs through his window to summon him on an all-night road trip of revenge he cannot help but follow. But the next morning, Q turns up at school and Margo doesn't. She's left clues to her disappearance, like a trail of breadcrumbs for Q to follow. And everything leads to one unavoidable question: who is the real Margo?