An old magistrate waiting to retire is serving out his last days on a lazy frontier in South Africa. He has jurisdiction over the garrison. But with the arrival of Colonel Joll from the Third Bureau - the most important division of the Civil Guard - the peaceful life is about to end for the magistrate. The arrival of Joll and his troops is justified by the fact that in the capital there is some concern about the barbarian tribes of the north uniting with those of the west, which may lead to unrest. Joll's methods of interrogation are brutal, his evidence against the native prisoners based on thin air. "Prisoners are prisoners" is enough of an accusation to lead a man or a woman to death.
When the magistrate decides to take a twenty year old girl with whom he had a relationship back to her tribe of barbarians, he is accused of having treasonously conspired with the enemy and the treatment inflicted on him thereafter is no less inhuman than that endured by the barbarians themselves. This is the price the magistrate has to pay for giving up his "alliance with the guardians of the Empire" and setting himself into opposition, thus becoming an enemy of the state.
Mr Coetzee's book shows all the suffering that the apartheid regime used to inflict on native South Africans. Furthermore, it shows that this regime was capable of committing the same atrocities against people of their own kin.