In late the late 1960s, Margo Channing is a Broadway star. However, she secretly is paranoid about her age. Soon, an ambitious chorus girl, Eve, warms up to her. However, the admiring chorus girl quickly becomes Margo’s worst enemy and competition. Eve ends up understudying for Margo and then sabotages her so that she can perform the role in front of the important critics. In the end, Eve becomes a star and Margo’s career is fading. However, Margo realizes that she can still find happiness in the man she loves, Bill.