From 1932 to 1945, in a race to develop germ warfare capability for the Imperial Japanese military thousands of Japanese doctors, nurses and scientists willingly took part in what was known at the time as "the secret of secrets": horrifying experiments on innocent Chinese men, women and children, as well as experiments on American prisoners of war.
An elite group known as Unit 731, led by Dr Shiro Ishii (Japan's answer to Joseph Mengele), infected thousands of prisoners with virulent strains of typhoid, plague, cholera and other epidemic diseases. Germ warfare campaigns were launched against China, cities and towns were hit with biological bombs.
Yet after the war, General Douglas MacArthur struck a deal with these doctors, shielding them from accountability for their crimes.
Provocative, compelling and alarming, A Plague Upon Humanity exposes one of the most shameful chapters in human history - the story of Japan's deadly biological warfare programme, and how it was hidden from the history of World War Two.