Shift by Hugh Howey

Set in a dystopian future, the narrative explores the origins and operations of a massive underground silo system designed to protect humanity from a toxic world above. The story unfolds through the perspectives of various characters, including a congressman who becomes embroiled in the silo's creation and a worker who uncovers unsettling truths about their existence. As secrets are revealed, the characters grapple with themes of power, control, and the moral complexities of survival, ultimately questioning the true nature of their reality and the intentions behind the silo's existence.