Trevor Reznik, a machinist, has lost the ability to sleep. But this is no ordinary insomnia. Trevor has not slept in a year. Fatigue has led to a shocking deterioration of his physical and mental health. Suspicious of his appearance, Trevor�s co-workers first shy away from him, then turn against him after he�s involved in a shop accident that costs a man his arm. They blame Trevor for the accident. He has become a liability to himself and others, and now they want him out. Plagued with guilt, Trevor�s shame becomes suspicion, then paranoia, when it appears his workmates are conspiring to have him fired - or worse.

First he finds cryptic notes left in his apartment. Next he�s told that a mysterious co-worker involved in the accident doesn�t exist. Are these mysteries part of a plot to drive Trevor mad? Or is it fatigue that�s robbing him of his reason? Determined to find an answer, Trevor investigates the strange occurrences that are turning his world into a sleepless nightmare. Yet the more he learns, the less he wants to know.