The double life is a recurring idea in the book. Kevin Lewis begins the book as an MIT graduate student with a promising career in medicine within his grasp. He comes from a respectable, established, upper-middle class family, enjoys close family ties, and enjoys his father's respect. He excels in sports, particularly swimming, and academics. He is seriously involved with a beautiful young woman whom he shortly introduces to his family. Lewis is quite obviously intelligent, adaptable, and well-liked. Through this period of his life, Lewis gradually becomes slightly bored and partially disillusioned with a conventional approach to living. At this point he is recruited by some friends into an organized card-counting ring of gamblers. Lewis finds the craft intriguing and excels at the gambling aspects. Within a few months he is earning large amounts of money and living a type of double life.