Unknown, alone, and fearing for your life. As PC Lucy Clayburn is about to find out, going undercover is the most dangerous work there is. But, on the trail of a prolific female serial killer, there's no other option and these murders are as brutal as they come. Lucy must step into the line of fire a stranger in a criminal underworld that butchers anyone who crosses the line. And, unknown to Lucy, she's already treading it. Always gripping. Always gruesome.
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