In 1988, Canadian authorities brought charges against neo-Nazi Ernst Zndel for publishing literature deemed to be deliberately false. His inflammatory pamphlets-- with such titles as Did Six Million Really Die? and The Hitler We Loved and Why--claimed the Holocaust never happened. During the highly publicized trial, Zundel hired an American expert in execution methods, Fred Leuchter, Jr., to conduct a forensic investigation into the use of poison gas in WWII concentration camps. The goal was to prove that the infamous concentration camps had simply been work camps, t human extermination facilities. Leuchter flew to Poland and retrieved brick and mortar samples from the walls of presumed gas chambers at Auschwitz, then smuggled them back to the United States. When these samples tested negative for poisous substances-- thereby proving that gecide did t take place at Auschwitz, according to some-- Leuchter issued his sensational findings in the famous Leuchter Report. Overnight, he became a hero to historical revisionists and a villain to human rights organizations and Jewish groups around the world. But Fred Leuchter's story isn't a Holocaust story. It is a tale of igrance, self-deception, and vanity. In Mr. Death, Errol Morris sews together a patchwork of diverse viewpoints that seek to uncover the central mystery behind Fred Leuchter's motivations.