Thirteen men have died in a London prison. Barrister Elliot Rook QC, who risks losing everything if his secret criminal past is revealed, must defend Charli Meadows, the vulnerable single mother accused of smuggling the deadly tainted drugs inside. But just as Rook becomes suspicious of those closest to Charli, a note arrives at his flat - threatening violence if the trial is not called off. While Rook battles to defend Charli and protect himself, his young protege Zara Barnes is fighting for her livelihood. In a few short weeks, only one tenancy at the legal chambers will be available to the ever-multiplying mass of pupils. Determined to make it hers, Zara takes on her biggest solo case yet. But will her gamble pay off?