The nagging suspicion that his father killed his mother haunted Jeff Blackstock, a retired Canadian diplomat, for years. Blackstock's father, George, was also a diplomat, posted in Buenos Aires in the 1950s with his wife Carole and their three children. Blackstock's parents had been married when Carole Gray was only 15 and George Blackstock 17--forced to wed when she became pregnant. He was an upper class scion and she a high school dropout from modest beginnings. Nine years later, she died at 24 from a mysterious illness never fully explained to her bereft children. In fact, her cause of death was kept secret for decades--until an autopsy report revealed that Carole had died of arsenic poisoning. Six months after Carole's death, George Blackstock brought a woman named Ingrid to meet his children and married her three months later. Carole's parents had kept the autopsy report but had been unable to get justice for their murdered daughter. Class privilege, power, and an aversion to scandal all figured in the apparent cover-up, both official and unofficial. But secrets have a way of eventually disrupting all families...