In 1968, with her otherwise brilliant career of soaring highs and plummeting lows taking a gradual descent since her golden era at Louis B. Mayer's (Richard Cordery's) Metro-Goldwyn-Mayer Studios, the universally loved American actress, singer and dancer, Judy Garland (Renée Zellweger), finds herself with her back to the wall. As a result - nearly three decades after her iconic role as "Dorothy" in The Wizard of Oz (1939) - the exhausted and struggling single mum, Judy Garland, tentatively accepts the invitation of the London impresario, Bernard Delfont (Sir Michael Gambon), to perform a five-week-long series of concerts at the Talk of the Town nightclub. However, there, amidst adoring followers and cynical critics, dangerous long-standing habits push the beloved performer to her breaking point, threatening her chance for success. Will Judy be able to overcome the demons of the past? Is there a magical land somewhere over the rainbow?