Deborah Lipstadt is an American professor of Holocaust studies whose speaking engagement is disrupted by David Irving, a Nazi Germany scholar. He files a libel lawsuit in the United Kingdom against Lipstadt and her publisher for declaring him a Holocaust denial in her books. Since, in the UK, the Legal burden of proof in a libel case lies with the accused, Lipstadt and her legal team led by solicitor Anthony Julius and barrister Richard Rampton must prove that Irving had lied about the Holocaust.