Judy Garland (Renee Zellweger) has been in front of the camera since the late 1920s and has already made 13 films by her 16th birthday. In 1939, the teenage boy was so exhausted from the ongoing filming that Louis B. Mayer (Richard Cordery), the boss of the MGM studio, gave her the choice: either she did what was asked of her or he ensured that her career goes down the drain. 30 years later, Judy is an old hand in show business, but she is no longer as popular as before. As a result, her debt rises and she appears for a few hundred dollars. With her ex-husband Sidney Luft (Rufus Sewell) she argues over the custody of her children Lorna (Bella Ramsey) and Joey (Lewin Lloyd). Although she can’t bear the thought of being separated from her children, Sid wants the children to grow up with him. When the London club owner Bernard Delfont (Michael Gambon) offers her to stay in his club for five weeks, she has no choice but to accept the offer. After a few start-up problems, her grandiose appearances get around and she becomes London’s talk to the city. Without her children, however, she becomes a mental wreck and this is also noticeable in her shows.