Based on the true story of a landmark legal case, the film chronicles history Professor Deborah Lipstadt’s efforts to prove in a court of law that the Holocaust happened. She had accused David Irving of being a Holocaust denier, and he in turn sued her for libel. The burden of proof was on her. She had to make her case in court, and find incontrovertible evidence that the Holocaust happened. A gripping true story, based on Lipstadt’s book.