equilibrium (2002)

at libria, a super-technological nation of an unspecified future, peace and the elimination of evil was achieved thanks to the denial of all emotion. to prevent citizens from feeling, the dictator requires the daily use of prozium, a powerful medicine. the senior official john preston, a scrupulous persecutor of rebels who do not take medicine, however, forgets the dose and discovers that there is another way to see the world, but he also begins a hard struggle for freedom.