Mundy tells how thousands of women fell ill and died after taking Fen-Phen, a popular diet-drug combination. The dieters suffered severe damages to their hearts and lungs. Those who survived were disabled for the rest of their lives. The book reveals that the manufacturer, Wyeth-Ayerst, a division of American Home Products, was well aware of the hazards of the product, but chose not to inform the public, the doctors and the regulators. The author looks at the tragic story of Mary Linnen, a healthy young woman who was the first to die from taking the dangerous medicine, and whose family was the first to file a wrongful death suit. The book depicts the avalanche of wrongful deaths and lawsuits that came in the years after the appearance of Fen-Phen in the market.