White Dog is a 1982 American drama horror film, which Samuel Fuller directed from a screenplay he and Curtis Hanson had dramatized, which, in turn, they based on Romain Gary's 1970 novel of the same title. The film depicts the struggle of a dog trainer named Keys, who is black, trying to retrain a stray dog found by a young actress, that is a "white dog"—a dog trained to make vicious attacks upon, and to kill, any black person. Fuller uses the film as a platform to deliver a message against racism as it examines the question of whether racism is a treatable problem or an incurable condition.