This book was extremely poor in many respects. The writing was very repetitive, and not in an effectual way. I didn't know how many times someone could 'sigh ruefully' in one short piece of dialogue. I finished the book because I really thought it must lead to something, the intensity and specificity of hatred that the killer had for young girls due to their sexuality was really strong, I thought this must be explained in the end by some facts about the killers life, past or psychopathology. But we never even get that, spoiler alert, in the end we do not get the typical mad speech of the villain who has finally been caught explaining himself, instead in a cop-out the killer has killed himself before questioning. This leaves me to believe that the misogyny expressed by the killer is in fact the opinions of the author. Which leads me to the bigger problem with this book, which goes beyond the writing and story construction.
This book speaks about people in a way that shows either a striking ignorance to the social context in which the book is set, or I suspect strong prejudice and bigotry against various groups. Whether or not the writer holds concordant beliefs personally, they are certainly expressed in a problematic, damaging and damning way by characters in this book, with no explanation, expansion or check of any kind. They are simply left there, make of it what you will, which is concerning.
Firstly, the protagonist has very negative views and behaviour towards the only people of colour in this book: the two mixed race brothers. These are the only characters who are expressly described as being of non-white ethnicity (which is strange considering the 'gangland' setting Cole is described as using), and (coincidence?) these are drug dealers, who live on a council estate. The protagonist describes the estate as a 'shithole', and believes people who live there also are 'shithole[s]'. Furthermore, in her direct interactions with the brothers she is very heavy handed with them, calling one 'boy' which is a racial slur. Finally, the only other character who is specified to be black, is a young girl the protagonist finds in bed with one of the brothers. The character is naked, and covers herself when the protagonist enters the room without knocking. In fact, both these underaged teenagers are mostly unclothed. But it is not recognised that it is in any way inappropriate for the adult protagonist to be looking at these minors in this way, rather it is portrayed as a triumph on the part of the detective. This is a really, for want of a better word, gross scene, particularly because the detectives' profile of the killer at this point in the book is an adult male resembling a paedophile, however the fact that this interaction is not in the least bit appropriate is never acknowledged.
This brings me on to my final point. The misogyny. This book is rife with it. Women in this book are only written as respectable on the condition that they do not wear makeup, are not sexually active beyond a rigid set of perimeters, and definitely do not have a facebook account. The vast majority of young women in this book are slated as disgusting wrongdoers who have made a huge mistake that will tarnish their name for the rest of their lives if, god forbid, they have consensual sexual involvement with a boy of the same age. The protagonist is disgusted with these girls' application of makeup as if these two are even correlated? It makes no sense what is inferred from these and related aspects in the girls lives, the views (along with the language) were archaic and did not fit; useless in the present day and the present book.
An unbelievably slut-shaming, victim-blaming and overall misogynistic view of both men and women throughout.