In “Equilibrium” Future is a place where no emotions and feeling are allowed cause they can destroy the totalitarian society. All cultural artifacts of humanity as music, art, movies, books and colours are completely prohibited. So as for human feeling as love and devotion. People are supposed to take special drug that opiates feelings.
The movie plot originally derives from Zamaytin's "We", Orwell's "1984" and Ray Bradbury's novel "Fahrenheit 451".
Wimmer, Kurt, Jan de Bont, Lucas Foster, Christian Bale, Emily Watson, Taye Diggs, Angus MacFadyen, et al. 2003. Equilibrium. [United States]: Dimension Home Video.