The novel describes a world of harmony and conformity within a united totalitarian state.We is set in the future. D-503, a spacecraft engineer, lives in the One State, an urban nation constructed almost entirely of glass, which assists mass surveillance. The structure of the state is Panopticon-like, and life is scientifically managed F. W. Taylor-style. People march in step with each other and are uniformed. There is no way of referring to people except by their given numbers. The society is run strictly by logic or reason as the primary justification for the laws or the construct of the society. The individual's behaviour is based on logic by way of formulas and equations outlined by the One State.
A few hundred years after the One State's conquest of the entire world, the spaceship Integral is being built in order to invade and conquer extraterrestrial planets. Meanwhile, the project's chief engineer, D-503, begins a journal that he intends to be carried upon the completed spaceship.