Intruder in the Dust is at once an engrossing murder mystery and an unflinching portrait of racial injustice: 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 Stevens, and his young nephew Chick Mallison.