In Night by Elie Wiesel, Moshe the Beadle is a very poor, but well loved, man. He is the one Elie goes to when he wants to learn Cabbala (Jewish mysticism). Moshe is also a foreigner, and the foreigners are the first Jews to be deported by the Nazis. Moshe is taken away, and the people of Sighet, his former town, soon forget him.
However, Moshe escapes the Nazis and returns to town with horror stories of what happened to the Jews who were with him. Even Moshe had been shot in the leg after he and the others were forced to dig a trench for their own grave and summarily shot. Most of them died there, but miraculously Moshe survived and came back to warn the townspeople.
Sadly and to their peril, his neighbors will not believe him. They think he has lost his mind. Even Elie is not sure of Moshe anymore. What Moshe describes to them is just too difficult to fathom. How could something like that happen? They decide it couldn't have happened and dismiss Moshe as a crazy person.