Based on the book by John Castle(real name, Sergeant-Major Charles Coward) . Charles Joseph Coward (30 January 1905 – 1976), known as the "Count of Auschwitz", was a British soldier captured during the Second World War who rescued Jews from Auschwitz and claimed he had smuggled himself into the camp for one night, subsequently testifying about his experience at the IG Farben Trial at Nuremberg. He also smuggled at least several hundred Jewish prisoners out of concentration camps.
Coward joined the Army in June 1924 and was captured in May 1940 near Calais while serving with the 8th Reserve Regimental Royal Artillery as BQMS, Battery Quartermaster Sergeant. He managed to make two escape attempts before even reaching a prisoner of war camp, then made seven further escapes; on one memorable occasion managing to be awarded the Iron Cross while posing as a wounded soldier in a German Army field hospital. When in captivity he was equally troublesome to his captors, arranging several acts of sabotage while out on work details.
After the war Coward testified at the Nuremberg war crimes trials, describing the conditions inside the Monowitz camp, the treatment of Allied POWs and Jewish prisoners and the locations of the gas chambers. In 1953, Coward also appeared as a witness in the "Wollheim Suit", when former slave labourer Norbert Wollheim sued IG Farben for his salary and compensation for damages.

