This is a good police procedural book, the ending is left open to become a series of DC Anna Gwynn books.
Anna, who is a strong female lead, looks into a case that mirrors an old investigation, with little to go on she turns to the original person Hector who was convicted of the past murder.
While I think the plot was ok I felt it wasnt delivered as well as it could of been, the story felt a little flat without a good twist. This being side I would still read the next in the series as I feel there is a strong character in Anna and Hector that could be delevloped more.

Come Out to Play is a good British cop procedural if you like this genre. When new DNA evidence indicates that convicted killer, Hector Shaw, may know something about the murder of a young girl, Detective Anna Gwynne has no choice but to play his twisted game. A parallel investigation into the rape and murder of two young girls almost seventeen years apart sees Anna turning once again to Shaw for answers. After all, who knows the mind of a killer better than one who’s been there himself?

I will be interested to see where Anna’s next cases take her. Hector’s letter to Anna shows that he's not finished with her yet. Also, i kind of feel there is more to Anna's story with ex-boyfriend Timothy.

A girl is dead, brutally stabbed to death and most of the local police force believe it’s the same offender who committed an identical killing years before. While they pursue every avenue to see the man they believe guilty locked away for good, Detective Anna Gwynne is sure her colleagues have the wrong man. She needs to find the real killer, and fast. To do that, she’ll have to sell her soul to the devil and get inside the mind of convicted killer Hector Shaw. I really liked Anna, she was strong and independent and not afraid to follow her own instincts. A strong, British police procedural