"The Humbling" tells the story of aging, suicidal stage actor Simon Axler (Al Pacino) and his struggles to find passion for life again. Near his breaking point, he finds motivation in the form of a young and lustful lesbian, Pegeen Stapleford (Greta Gerwig), who has had a crush on Simon since childhood. As their relationship heats up, Simon has a hard time keeping up with the youthful and exuberant Pegeen. He feels more alive than ever before but with many disapproving people protesting their relationship, Simon must decide where his true passion lies.