"Late in the Day" is a novel by Tessa Hadley that explores the complexities of friendship and love among a group of middle-aged friends. The story revolves around the lives of Alex, Christine, and Zachary, who navigate their relationships and personal struggles as they confront the realities of aging and loss. Set in contemporary London, the narrative delves into themes of loyalty, betrayal, and the passage of time. Through rich character development and introspective storytelling, Hadley examines how past choices shape the present, ultimately revealing the intricacies of human connection.