This is the latest book in the excellent police procedural series from Alex Walters featuring DCI Kenny Murrain.
Murrain has a sense when things are not as they should be, leading to him "seeing" and sometimes hearing things that are not on others' wavelengths; however, this is not always a good thing.
Tasked with investigating a series of mysterious deaths in the community, all linked by a fatal injection of diamorphine, things are further complicated for Murrain when patients also start dying in the local hospital where a police officer lies unconscious and it gradually becomes apparent that an old adversary is at work. The unresolved business on Murrain's mind from the previous investigation proves difficult to deal with, especially as he feels responsible for the officer who has been hospitalised.
The web is a tangled one, involving a GP with a shady past, a retired war reporter, a sinister unnamed hospital worker, and an old flame of one of Murrain's officers.
As the tension ratchets up, Murrain again encounters his former nemesis - a very disturbed and psychotic individual - but what will be the outcome?
I enjoyed this book, especially as the investigation gathered pace. The introduction of some new characters, notably Colin Willock to the police team, gave an added edge of tension and there was a palpable sense of unease as the body count increased.
The ending had one rather dramatic piece of timing which some will see as a convenient plot device, but the way everything came together made sense and gave the investigation closure.
It will help to have read the previous Murrain book, Stilled Voices, first as events in this book follow on from its ending.
I am grateful to the author for an ARC of this book, in return for an honest appraisal.