As per the show's logline, "Tiny Beautiful Things" follows Clare (Hahn) "a floundering writer who becomes a revered advice columnist while her own life is falling apart." It continues: "When we first meet Clare, her marriage to her husband Danny is barely limping along; her teenage daughter, Rae, is pushing her away; and her once-promising writing career is nonexistent." However, when an old writing friend pitches Clare to take over an advice column called Dear Sugar, her "life unfurls in a complex fabric of memory, exploring her most pivotal moments from childhood through present day, and excavating the beauty, struggle, and humour in her unhealed wounds."