1960s London. Crime is at the highest level on record. Extortion, robbery and murder are rife through the capital. Everyone knows the gangsters responsible, but no one will go on the record. Detective Nipper Read is tasked with the mission of bringing the city back to the rule of law. As he faces bent cops, political backstabbing, and terrified witnesses, he becomes increasingly obsessed with breaking the code of silence. The true story of the price paid by the man who caught the Kray twins.