Sharon Horgan's new HBO comedy 'Youth' follows a fiftysomething London literary agent navigating midlife challenges—an empty nest, obsolete career instincts, menopause, and aging parents—when her son unexpectedly returns home from college. Horgan, known for autobiographical storytelling in shows like 'Catastrophe' and 'Divorce,' draws from her own life experiences to create intimate, female-centric comedies that tackle contemporary struggles with lacerating honesty.