Adjustment Team by Philip K. Dick

A man accidentally discovers that everyday reality is managed from behind the scenes by a bureaucratic team that periodically 'adjusts' events to keep a larger plan on track; after wandering into a forbidden area and becoming temporarily excluded from the normal flow of time, he watches his life being rewritten and must confront the tension between individual free will and an impersonal, managerial order—an unsettling blend of paranoia, metaphysical speculation, and satire of bureaucratic control.

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