Carey, Mike -- The Devil You Know

An exorcist tries to make rent in an alternate London where the ghosts all came back one day. (I think it was one day, I've forgotten the exact scenario.) The secrets of dead people turn out to be squalid, dark, morally unfocussed, or -- in a word -- noir, which makes this a great setup for a Harry-Dresden-style investigative paranormal series. Satisfying.

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