The second book in Jane Casey's gripping Maeve Kerrigan series. A tense crime thriller from the Sunday Times bestselling author, perfect for fans of Claire Douglas, Lisa Jewell and Clare Mackintosh.

'Jane Casey's police procedurals go from strength to strength!' Sunday Times 'If you have not read Jane Casey, start immediately' Marian Keyes 'The most dangerously addictive series in crime fiction. . .' Erin Kelly

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It's a thin line between revenege and murder. . .

To the public, he's a hero- a killer who targets convicted paedophiles.

Two men have already been tortured to death and, for the police, their cases are not a priority.

But DC Maeve Kerrigan believes that no one should be allowed to take the law into their own hands.

As the killer's violence begins to escalate, Maeve is forced to confront exactly how far she's prepared to go to ensure justice is served...