A 1962 film directed by Roger Corman, after a novel by Charles Beaumont, starring William Shatner. The story depicts the machinations of a racist named Adam Cramer (portrayed by Shatner), who arrives in the fictitious small southern town of Caxton in order to incite townspeople to racial violence against the town's black minority and court-ordered school integration.
The film was shot in southeast Missouri. Some of the production took place in East Prairie and Charleston (two towns in Mississippi County, Missouri). Before it was finished, local people objected to the film's portrayal of racism and segregation. Parts of the film were later filmed in Sikeston, Missouri.