The document discusses how class shapes the characters and events in the play "Blood Brothers". It examines the social classes of working class, represented by the Johnstone family, and middle class, represented by the Lyons family. The working class faced poverty, unemployment, and lower opportunities compared to the comfortably off middle class families. This contrast in social circumstances between the two families, and how it influences the characters of Mickey and Eddie who are separated at birth, is a central theme explored in the play.