1984

Winston and Julia's affair collapses when Mr Charrington, the seemingly kindly antique-shop owner who rented them their hideaway room, is revealed to be an undercover Thought Police agent. The two are arrested in the room above the shop and separated. O'Brien, the Inner Party man Winston had trusted as a secret ally in the Brotherhood, turns out to have been surveilling him all along; he personally oversees Winston's interrogation and torture at the Ministry of Love. Over months of starvation, beatings, and psychological manipulation, O'Brien systematically breaks down Winston's grip on objective truth and independent thought, forcing him to accept Party doctrines such as "two plus two equals five." O'Brien also discloses that the Brotherhood may not exist at all, and that Goldstein's subversive book was written collaboratively by Party insiders including himself, as an instrument of control rather than a genuine manifesto.

The final stage of Winston's re-education takes place in Room 101, where each prisoner is made to face their deepest personal fear. For Winston this is rats. Fitted with a cage of starving rats that O'Brien threatens to release onto his face, Winston breaks completely, screaming for the torture to be inflicted on Julia instead of himself. This act of betrayal is the last thing the Party needs from him: proof that his love for another person could be overridden by animal terror and turned against her.

Winston is eventually released back into ordinary life, hollowed out and passive, spending his days at the Chestnut Tree Café. He runs into Julia again; each confesses to the other that they betrayed the other under torture, and they acknowledge with flat indifference that whatever they felt is gone. Sitting in the café as a telescreen blares a bulletin proclaiming a great Oceanic military victory in Africa, Winston finally surrenders inwardly and completely: he looks at the poster of Big Brother's face and feels, without irony or resistance, that he loves Big Brother. The Party has achieved total victory over him.

The novel closes with an appendix, "The Principles of Newspeak," written in a distanced, analytical, past-tense voice describing Newspeak as a language project that was still being phased in. Some readers take this framing—written as if from a time after the Party's language experiment and, by extension, the Party's regime—as an implied coda suggesting the eventual failure of Newspeak and the fall of the Party at some unspecified later date, though the novel itself never confirms this within Winston's story.