In The Matter Of: Instrument of God, by Paul Robinson

What happens after you die? What if you discover it’s like a clone of earth because someone captured everyone’s soul and stored it in a computer the way they did in The Matrix, only you know you’re dead and that you can do just about anything? As the lead character of the book says to someone when they didn’t know this “You’re dead; live with it.”
This book looks at the death, life, re-death, re-life and re-redeath through the experiences of Supervisor 246 and others and the crazy world of the Afterlife he and others reside in. Take our world, remove some of the annoying parts, then turn it upside down and shake it, and you get the strange and complex place these people reside in.