It's tricky to write novels set during the fairly tight continuity of a TV show, though one format that works well here is the Being Human version of the Doctor Who / Torchwood monster-of-the-week, in this case a ghostly woman called Gemma, whose presence in our heroes' lives provokes them to help her find her own closure after the her son's death. The truth turns out to be pretty tough to uncover and also rather unpleasant in detail, with the ghosts of wronged Bristolians thronging the pages. Gemma is quite a good character study in character manipulation, and is indeed herself the main obstacle to reaching the answer; in the end Mitchell's key motivation for solving the mystery and getting rid of her is that she is driving Annie up the walls.
Meanwhile George is excused most of the Gemma sub-plot to get hooked up with some friendly colleagues who want him to father their child. But apparently there is more of that in the next book.
