Ten years ago, Izzy Stone's mother fatally shot her father while he slept. Devastated by her mother's apparent insanity, Izzy, now seventeen, refuses to visit her in prison. But her new foster parents, employees at the local museum, have enlisted Izzy's help in cataloging items at a long-shuttered state asylum. There, amid piles of abandoned belongings, Izzy discovers a stack of unopened letters, a decades-old journal, and a window into her own past.