A Man Obsessed is a science fiction novel by American author Alan E. Nourse first published in 1955.

HE HUNTED HORROR THROUGH A MANIAC WORLD!

Jeffrey Meyer had a killing on his mind. It meant nothing to him that his towering Twenty-first Century world was going mad. He shouldered aside the rising tide of narcotics-mania, the gambling fever, the insatiable lust for the irrational. Jeff had his own all-consuming obsession—Paul Conroe must die!

After a five-year frenzied chase, Jeff had his victim cornered; he'd driven him into the last hideaway of the world's most desperate men—the sealed vaults of the human-vivisectionists. And Jeff knew that to reach his final horrible objective, he must offer himself also as a guinea pig for the secret experiments of the world's most feared physicians!

Alan E. Nourse's novel A Man Obsessed has the impact of Orwell's 1984 and the imaginative vigor of Huxley's Brave New World.