'Addictive. Will have readers scrabbling at the pages as feverishly as an innocent clawing at a prison cell door' Daily Express
'A great set-up, and Arlidge keeps the tension ratcheted up throughout' Sunday Times Crime Club
Prison is no place for a detective
Helen Grace was one of the country's best police investigators.
Now she's behind bars with the killers she caught.
Framed for murder
She knows there is only way out:
stay alive until her trial and somehow prove her innocence.
Locked up with a killer
But when a mutilated body is found in the cell next door,
Helen fears her days are numbered.
A murderer is on the loose.
And she must find them.
Before she's next . . .