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 one way out: stay alive until her trial and somehow prove her innocence. 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…

Part of the DI Helen Grace Series series.