I surprised myself by enjoying this book much more than I had expected. The author was new to me and so I had not read others in the Deacon/Brodie series.
For a start, and as a Scot, those names in conjunction conjure up images of 18th century Edinburgh rather than a fictitious town in the south of England. I much prefer novels set in real locations which infuse the narrative with their own peculiar atmospheres.
As an example, Ian Rankin's Rebus novels are imbued with the sense of Edinburgh as a place and all the better for it. The trouble with a fictional location is that it constantly reminds you that you are reading fiction and so the suspension of disbelief is lost.
Secondly, the main characters are all dysfunctional and not particularly likeable. Normally that would have me speed-reading to the end, but in this case the writing and plot were sufficient to make me see it through.
It's not what I would call a top quality police procedural novel but I would be happy to read more from Jo Bannister.