
Book Description:
Natasha Mayston wasn’t expecting anyone to knock on her door so late at night. And she has no idea that the face staring back at her is the last one she’ll ever see…
As Detective Dan Lockhart is called to a wealthy London street to investigate Natasha’s death, he’s startled by the similarity to a previous case. Noticing the cable-tie restraints and the tiny scratches on Natasha’s wedding finger, Dan already knows what he will find if he looks in her mouth – the metal ball which choked her to death. He knows Natasha isn’t the killer’s first victim and is certain that he will strike again.
Months earlier, Kim Hardy was found in the same position in a run-down hotel across the city – an identical silver ball in her throat. But Kim’s murderer was caught and sent to prison – did they arrest the wrong man? And what connects the two victims? Fearing that he’s dealing with a psychopathic serial killer, Dan calls in psychologist Dr Lexi Green to help him to get into the perpetrator’s mind. Tough and smart, Lexi will stop at nothing to hunt down the man responsible for the deaths.
Then, another body is discovered, just as Lexi finds a clue online leading to the killer. Dan’s team aren’t convinced, but in pushing Lexi away from the investigation, they force her to dig further into the case on her own. Convinced that she’s on to something, she puts herself in unthinkable danger… but can Dan piece together the clues and identify the killer before it’s too late?
Fans of Angela Marsons, Robert Dugoni and Cara Hunter will love this thrilling new series from Chris Merritt. From an explosive start to a heart-stopping finale, you will not want to put this book down!

My Thoughts:
Being a huge fan of the authors Detective Zac Boateng crime series, I was very excited to see that not only did he have a new novel coming out but it was the first in another crime series. This time featuring Detective Dan Lockhart and psychologist Dr Lexi Green.
Dan comes across as being a genuinely nice guy. His personal life isn’t without issues though, of which I am very keen to learn more about. Same goes for Lexi. I loved her strength and her role ties in very nicely with Dan and the case he soon starts working on.
The killer in the book is sadistic and how they murder their victims, well let’s just say my hand was pretty much resting on my throat at the thought it all. I am praying I don’t have nightmares after reading it!
The majority of the story focuses on Dan and Lexi rather than the killer. I have to say with how horrible the killer is, I am actually quite grateful for this. It sets the new series up well, getting a real feel for the two main characters of which has left me excited for more.
Knock Knock is a spine chilling read that had me squirming in my seat more than a few times. It is steadily paced with a turbo injection that sent me hurtling towards the end to see how it was all going to pan out. I think I may have actually forgot to breath at some points and even hours after finishing it, my heart was still racing. An adrenaline, page turner of a read.
My thanks to Bookouture and NetGalley for an advanced readers copy of this book. All opinions are my own and not biased in anyway.
Knock Knock is available to purchase from Amazon.

Author Bio:
Chris Merritt is a British author whose crime thrillers combine psychology, suspense, and characters you care about.
All his novels are set in London, where he lives. He began writing fiction in 2014, after previous careers as a diplomat, based in Iraq and Jerusalem, and later as a psychologist working with victims and perpetrators of crime. He specialised in treating Post-Traumatic Stress Disorder (PTSD), which sparked his interest in telling stories about how people cope when faced with extreme adversity.
Now he spends most of his time writing novels and drinking coffee while thinking about writing novels. When he’s not writing, he loves climbing and playing basketball.
Author Social Media Links:
Twitter: https://twitter.com/DrCJMerritt
Goodreads: https://www.goodreads.com/author/show/17558172.Chris_Merritt
Website: http://www.cjmerritt.co.uk
This one looks good!
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Another one for my reading list!
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I have read some great reviews about this book. Fabulous review.
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