Scott Carey, the main character of the book, is shrinking. Slowly, 1/7 of an inch each day, but irresistibly. And with each seventh of an inch new threads that tied him to normal life are torn and a new portion of horror, loneliness and desperation enters his life. Carey's thoughts, feelings and desires remain the same, but in the eyes of the entire world he gradually becomes first a small child, then a kind of living toy that lives in a dollhouse, talks to a doll and is treated even by his daughter in a way not greatly different from that she treats his interlocutor, and finally an insect whom no one even notices. In this book the unbearable sense of loneliness, of total estrangement from everyone and everything one loved or liked, the necessity to confront the entire world that at once becomes one's most bitter enemy, which are so vividly depicted in I am Legend, another novel by Richard Matheson, are shown in a new light. But whatever happens, however small he becomes, however desperately he tries to struggle for life, Scott Carey remains, nevertheless, a human. He finds in himself strength to confront face to face his greatest fear, the spider that became the bane of his insect-like life, and his wife always remains in his heart. The final chapters of the book show that however much of his size he has lost, he has lost nothing of what REALLY made him a human being. And whatever happens to him beyond what we misname zero, we can be sure that he will face it all like a man should do.