Grace Peregrine had only one more year of high school left before she'd be off to college where she could start a normal life, a life where no one knew her as 'pumpkin'. But a month into her senior year a suspicious package shows up at her front door and soon her life is out of control. After a fire leaves Grace and her sister, Amy, orphaned, they move in with the wealthy Greene family. There, Grace could feel at home if it wasn't for Wesley Greene, the boy who rendered her an outcast. He's supposed to be off at college but keeps stopping by unexpectedly. That all becomes trivial after Grace overhears the fire marshal tell Mrs. Greene that the fire was set on purpose making Grace question if there is a connection between the fire and the two strange bumps that recently appeared on her back. The only solace from the constant worry and questions, and Wesley's prying eyes, comes when Justin St. George, the cutest boy in school starts paying her attention. But when the bumps grow into bright red wings, and two mysterious men follow Grace home from school, she sets out to find the truth no matter what the cost.