Güllen is a fictional town in Friedrich Dürrenmatt's play, "The Visit." It is depicted as a small, economically struggling community that faces financial difficulties and declining population. The town's residents are hopeful for a solution to their problems, which sets the stage for the arrival of a wealthy benefactor. The central character, Claire Zachanassian, returns to Güllen after many years, bringing with her a promise of wealth. However, her conditions for financial support lead to moral dilemmas among the townspeople, highlighting themes of greed, justice, and the consequences of choices made under pressure.