Intruder in the Dust is at once an engrossing murder mystery and an unflinching portrait of racial injustice. Set in Faulkner's fictional Yoknapatawpha County, it is the story of Lucas Beauchamp, a black man wrongly arrested for the murder of Vinson Gowrie, a white man. Confronted by the threat of lynching, Lucas sets out to prove his innocence, aided by a white lawyer, Gavin Stephens, and his young nephew, Chick Mallison.