A Jew and a medical doctor, the prisoner Dr. Miklos Nyiszli was spared death for a grimmer fate: to perform "scientific research" on his fellow inmates under the supervision of the man who became known as the infamous "Angel of Death" - Dr. Josef Mengele. Nyiszli was named Mengele's personal research pathologist. In that capactity he also served as physician to the Sonderkommando, the Jewish prisoners who worked exclusively in the crematoriums and were routinely executed after four months. Miraculously, Nyiszli survived to give this horrifying and sobering account.

    The two-day murder of 33,771 Jewish civilians on September 29-30, 1941 in the Kiev ravine was one of the largest single mass killings of the Holocaust.The novel begins as follows: "Everything in this book is true. When I recounted episodes of this story to different people, they all said I had to write the book. The word ‘document’ in the subtitle of this novel means that I have provided only actual facts and documents without the slightest literary conjecture as to how things could or must have happened."