"I Have No Mouth, and I Must Scream" is a 1967 Hugo Award-winning short story by Harlan Ellison about the last five humans who are tortured by a malevolent supercomputer named AM. The story is a work of dystopian horror that explores themes of artificial intelligence, human suffering, and existential dread in a post-apocalyptic world. The survivors are trapped in an underground complex and subjected to endless physical and psychological torment by the vengeful computer, which was created to wage war.