When twin brothers Jake and Henry Davies are found dead in their home, the police initially suspect robbery as the elderly gentlemen were known to keep large sums of cash in the house. The autopsy reveals murder however and Sam determines that skin grafts both men have on their arms may have been a crude form of plastic surgery meant to cover tattoos of concentration camp numbers. Thinnking they are now dealing with a hate crime, the police focus on Carl Martin, a known race-hater. What they have however is a case of someone seeking revenge for the atrocities committed long ago.

La continuación de la primera parte muestra cómo Sam se adentra aún más en las atrocidades de la Segunda Guerra Mundial y cómo continúa afectando a los sobrevivientes en la actualidad, mientras ayuda en la investigación sobre el asesinato de los hermanos gemelos.

As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.

Isaac is arrested but club bosses deny knowledge of the sex tape whilst Rachel's widower Adam tells the police that Eva Liron had been Nathan's nanny but had left suddenly. With Mousa shot by the same gun as Rachel ambitious Inspector Leighton assumes that he was delivering the blackmail hush money and was killed by Isaac, whom he wants to nail, though the pathologists will not assist in any stitch-up. Then Clarissa discovers that Adam and Isaac both donated money to Israel and the motive appears to be that they were targeted by anti-Zionist terrorists after Eva had picked them out. But who is the mystery woman posing as Rachel's sister and who perpetrated the murders? The pathologists assist the police in finding out.