In an all-too-possible near future, when genetic engineering has become the norm for humans, parents are prepared to take incalculable risks to ensure that their babies are perfect, altering genes that may cause illness, and more . . . Susan has been trying for a baby for years, and when a one-night stand makes her dream come true, she'll do anything to ensure her husband doesn't find out - including the unthinkable. She believes her secret is safe. For now. But as governments embark on a genetic arms race and children around the globe start experiencing a host of distressing symptoms, something truly horrendous is unleashed. Because those children have only one thing in common, and people are starting to ask questions . . .