During the civil rights movement, an African-American man, Jerry Ellworth (Richard Gilden, a white actor), is a Los Angeles jazz musician with a white girlfriend. Meanwhile, in an Alabama diner, a young black man attempts to exercise his civil rights by sitting at a local diner. When the Ku Klux Klan learn of this, they firebomb a church, killing Jerry's daughter. When he learns of this, Jerry moves to Alabama to infiltrate the group responsible for his daughter's death. Jerry dons his disguise and becomes a member of the inner circle, befriending the local leader and his daughter, and soon exacts his revenge.