"The Sense of an Ending" is a novel by Julian Barnes that explores themes of memory, regret, and the complexities of human relationships. The story follows Tony Webster, a retired man who receives an unexpected legacy from his ex-girlfriend's mother, prompting him to reflect on his past and the choices he made. As Tony delves into his memories, he confronts the impact of his actions on others, particularly regarding his relationship with Veronica and the enigmatic Adrian. The narrative raises questions about the reliability of memory and the nature of truth, ultimately leading to a profound realization about the passage of time and its effects on life.