Ugo Piazza is a fictional character from the novel "The Postman Always Rings Twice," written by James M. Cain. He is portrayed as a complex and passionate man, often caught in a web of desire and moral ambiguity. Ugo's character embodies themes of love, betrayal, and the consequences of one's actions. In the story, Ugo becomes involved in a tumultuous relationship with Cora Smith, leading to dramatic events that shape the narrative. His struggles reflect the darker aspects of human nature and the pursuit of happiness, making him a memorable figure in American literature.