Either read the book or see the movie. Both stand on their own as literary/cinematic masterpieces. The story follows a the ultra-violent life of Alex; a young sociopath in a post-Cold War landscape.
The book is completly written in Alex's slang, Nadsat, a combination of Russian words and Shakespearean English. Its comentary of free will within the boundaries of good and evil are unparalleled.
The movie, directed by Stanley Kubrik (2001: Space Odessy, Lolita, Fullmetal Jacket), uses fisheye lenses, rapid motion, synthesized music and other surreal effects to create Alex's universe.
It is an amazing experience.
M.S. Mark