describe the opening of the play

The important events in All My Sons have already transpired. The only action that occurs within the time frame of the narrative is the revelation of certain facts about the past, and it is important to track how the revelations change the relationships among the characters as well as their own self-definition. Arthur Miller carefully controls the flow of information rather than focusing on plot and action. Thus the play, influenced by the work of the playwright Ibsen, is paced by the slow revelation of facts. Please see the GradeSaver Site for more detail. It's all there! Just follow the source-link below.