When night falls, the restrictions on Jews have begun. The town is now under Nazi rule. Jews have lost their freedom and will begin being rounded up and sent to concentration camps or their deaths. Night here is not a time of mystery and wonder. It signifies darkness and death. At this point, the Jews are in the dark about their lives and their future. There is no hope, goodness, or light: only dark. In the book Night by Elie Wiesel he is detailing the darkest point in his life. Where he had lost the desire to live and also his faith.
The introduction of the plot is the exposition
