The story centers on Charlie Asher, a "beta-male" (as opposed to "alpha-male") who leads a satisfying life as the owner and proprietor of a second-hand store in San Francisco. At the moment when his wife Rachel unexpectedly dies in the hospital shortly after the birth of their first child (Sophie), Charlie becomes involved in a new sideline of retrieving the souls of the dying, so as to protect them from the forces of the underworld. He only gradually realizes the ramifications of this business as various clues and complications unfold. Ultimately Charlie resolves to confront directly the forces of darkness.