Rachel's elderly mother loses her entire life savings in a bank scam: money intended for the care of Rachel's brother Robbie, who has Down's syndrome. Rachel suspects that her husband Paul, whose business is failing, knows more than he admits.Meanwhile, in a city near the Russian border, a financier hands a photo of Rachel to a brilliant young geneticist.Why is Rachel so vital to shadowy people in a far-off country? Should she trust Paul? How does all this link back to her mother?The forces ranged against Rachel and Robbie are closing in. Can sister and brother defeat the multi-million-dollar conspiracy which threatens so many innocent lives-including theirs?