As Anne Welles, a recent Radcliffe graduate, steps into her role as a secretary at a theatrical agency, she becomes embroiled in the ruthless and competitive landscape of Broadway. Helen Lawson, a famed diva known for her unforgiving nature, eyes the talented newcomer Neely O'Hara with suspicion, worried that Anne's rising star might overshadow her own. In an effort to eliminate her competition, Helen employs devious tactics, leading to Anne's boss being pressured into having Neely withdraw from their upcoming production. This experience shatters Anne's illusions about the industry's darker side and highlights the harsh treatment received by aspiring talents.
Despite this disillusionment, Lyon Burke, the business associate of Anne's boss, persuades her to remain at the agency, revealing that there is still merit in her position. Throughout her journey, Anne develops a close friendship with Neely, as well as Jennifer North, an ambitious chorus girl who often falls for the wrong type of men. Together, the trio shares a profound bond, understanding the trials and temptations that accompany the pursuit of fame.
As Neely's rise in the spotlight escalates, it is marked by a series of questionable choices, including her decision to move to Hollywood for a promising film career. Sadly, her increasing reliance on substances takes a toll on her relationships, resulting in failed marriages and a chaotic personal life.
In the midst of Neely's turbulent journey, Anne faces pivotal moments in her own professional and personal life. A serendipitous meeting with Kevin Gillmore, a charismatic client of Lyon, sparks a romantic interest that ultimately fizzles out when Anne acknowledges their lack of compatibility. At the same time, Jennifer’s plunge into Hollywood’s murky depths unveils heartbreaking truths about her husband Tony Polar and his undisclosed health issues.
As the narrative progresses, tragedy strikes with Jennifer’s devastating diagnosis of breast cancer. Tormented by the belief that her physical form is her only asset, she makes the heartbreaking decision to end her life rather than undergo a mastectomy. This harrowing event serves as a stark reminder of the price of fame and the fragility of human existence.
As Neely's struggles with addiction come to a head, she finds herself admitted to the very same sanitarium as Tony. A fortuitous meeting rekindles musical memories as Neely breaks into song in the shared space, prompting Tony to harmonize with her. After Neely’s release, Lyon manages to secure her a coveted position on Broadway, where she quickly becomes the center of attention, albeit for all the wrong reasons. Her entanglement with Lyon reaches dramatic heights at a press event for Helen Lawson, culminating in a memorable confrontation in the women’s restroom, where Neely tears off Helen’s wig and flushes it away. In the aftermath, Lyon ends their relationship when Neely's addiction spirals out of control, opting to seek comfort in her understudy instead.
Left to deal with her crushing responsibilities, Neely finds herself alone, sobbing in an empty alley as reality settles in during a lonely night. Meanwhile, Anne grapples with Lyon's betrayal, resorting to risky self-soothing habits that jeopardize her very life. A dangerous encounter with drugs nearly costs her everything when she nearly drowns while high at sea. In search of solace from her ruined relationships, Anne retreats to her New England roots, receiving care from her Aunt Amy. Though Lyon eventually tracks her down, entreating her for another chance, Anne firmly chooses independence and solitude—a choice that ultimately liberates her.
