Annie Maple was a 29-year-old San Francisco underachiever, a college dropout living in the shadow of her genius older brother. Then she died and went to Hell -- the classic Christian Hell, with fire and sulfur and devils, a place she never imagined might truly exist. Annie can't remember how she died or why she was sent there. But the systems governing Hell are starting to run down, giving her a chance to escape. Joining other "shaken loose" souls from different eras in search of an exit, Annie treks across volcanic deserts, flees marauders, and confronts an existentially depressed Satan. Hell, she learns, is an unjust place filled not only with truly evil people, but also with billions of average souls who simply didn't happen to be Christian. Seeking the courage to transcend her past failures, Annie must ultimately choose between returning to life and challenging this system of divine injustice.