Which literary work is famous for its exploration of the human psyche and guilt?

The story "The Tell-Tale Heart" by Edgar Allan Poe is renowned for its deep exploration of the human psyche, particularly the themes of guilt and paranoia. The narrator's descent into madness is driven by an overwhelming sense of guilt after committing murder, making it a quintessential study of how the mind grapples with the consequences of unethical actions. Poe masterfully conveys the narrator's internal conflict as he attempts to rationalize his crime, leading to a psychological unraveling that captures the reader's attention and elicits empathy and horror. The vivid descriptions of the narrator’s obsessive thoughts and heightened senses illustrate a powerful representation of guilt, making this work a cornerstone in discussions about psychological literature.