Private detective Nick Holleran saw everything. And then he died and came back to life, realizing that all his ideas about the world were lies. Hell exists and we live in it. Demons, ghosts and fallen angels walk among us, and only the damned few know about it. As Holleran takes on his next case to earn his ticket to heaven, he doesn't expect it to be a test of his new abilities. Soon he will have to face the one he carefully avoided - the man who killed him. Will Nick be able to leave his past behind, or will it destroy his present? Revenge is a sin, and sinners remain in hell.