Thông tin phim

Libria, a totalitarian city-state established by survivors of World War III, blames human emotion as the cause for the war. Any activity or object that stimulates emotion is strictly forbidden. Those in violation are labelled "Sense Offenders" and sentenced to death. The population is forced to take a daily injection of "Prozium II" to suppress emotion. Libria is governed by the Tetragrammaton Council, led by "Father", who communicates propaganda through giant video screens throughout the city. At the pinnacle of law enforcement are the Grammaton Clerics, trained in the martial art of gun kata. Clerics frequently raid homes to search for and destroy illegal materials – art, literature and music – executing violators on the spot. A resistance movement, known as the "Underground", emerges to topple Father and the Tetragrammaton Council.

In 2072, John Preston is a high-ranking Cleric whose wife, Viviana, was executed as a Sense Offender, leaving him as a single parent of two. Following a raid, Preston notices his partner, Errol Partridge, saves a book of poems by W. B. Yeats instead of turning it in for incineration. He follows Partridge to the Nether – a term for regions outside the city – and finds him reading the book. After seeing Preston, Partridge claims he gladly pays the heavy price of feeling emotion; Preston executes him as Partridge slowly reaches for his gun.

Preston accidentally breaks a daily vial of Prozium and is unable to replace it before going on the next raid. Brief episodes of emotion set in evoking memories, stirring feelings, and making him more aware of his surroundings. He intentionally skips additional doses of Prozium, hiding them behind the mirror in his bathroom. Partridge is replaced with an ambitious, career-conscious Brandt, who expresses admiration for Preston's "uncompromising" work as a Cleric. On a raid, they arrest Sense Offender Mary O'Brien. To Brandt's surprise, Preston prevents him from executing O'Brien, saying she should be kept alive for interrogation. Brandt grows suspicious of Preston's hesitation.

Preston begins to feel remorse for killing Partridge, develops an emotional relationship with O'Brien, and seeks atonement. He uncovers clues that lead to meeting Jurgen, leader of the Underground. Jurgen is planning to disrupt Prozium production to spark a populace uprising and convinces Preston that Father must be assassinated. Vice-Counsel DuPont meets with Preston to reveal that there is a traitor in the upper ranks of the Clerics. Although DuPont initially suspects it is Preston, he assigns him the task of unmasking the traitor. Relieved, Preston accepts and promises to locate the Underground's leadership.

Meanwhile, O'Brien is set to be executed, and Jurgen advises against interfering believing it could sabotage plans for the revolution. Unable to bear her death, Preston attempts to stop the execution and fails. He has an emotional breakdown and is arrested by Brandt, who brings him before DuPont. Preston tricks DuPont into believing that Brandt is the traitor. Following Brandt's arrest, Preston is told that his home will be searched as a formality. He rushes home to destroy the hidden vials only to discover his son, who stopped taking Prozium after his mother died, already has.

Jurgen tells Preston to capture the leaders of the resistance to regain government trust, hoping it will get Preston close enough to assassinate Father. Preston is granted an exclusive audience with Father only to discover that Brandt was not arrested; it was part of a ruse to expose Preston and the Underground. DuPont reveals he is Father, having secretly replaced the original Father who died, and that he doesn't take Prozium to suppress emotion. He taunts Preston, asking how it felt to betray the Underground. Enraged, Preston fights his way through an army of bodyguards to DuPont's office, confronting and killing Brandt in a katana battle. DuPont and Preston engage in a gun kata showdown. Preston wins as DuPont pleads for his life asking, "Is it really worth the price?" Paying homage to Partridge's last words, he responds, "I pay it gladly" and kills DuPont. He destroys the command center that broadcasts Father propaganda. Preston watches with satisfaction from above as the Underground destroys Prozium manufacturing plants, signaling the beginning of the revolution.

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