Katherine Newbury, played by Emma Thompson, is a prominent talk show host renowned for her career in comedy. However, her show's ratings have plummeted over the past decade, prompting the network's president, Amy Ryan as Caroline Morton, to demand substantial improvements or face cancellation. In a strategic move to revitalize her show, Katherine brings on board Molly Patel, portrayed by Mindy Kaling, primarily due to her identity as an Indian American woman, amidst a predominantly white male writing team. Katherine has a notorious reputation for not retaining female staff, making this decision even more precarious.
Molly, who previously worked in a chemical plant, seized the opportunity to connect with Katherine after impressing the parent company's president in an essay contest. Unfortunately, her first day coincides with Katherine's harsh decision to fire two employees, leading to immediate animosity among the remaining writers, especially as Molly candidly critiques the show in her inaugural meeting—a trait Katherine surprisingly admires.
As the pressure mounts, Molly, despite her lack of experience in comedy, begins to shine by providing Katherine with fresh content and innovative ideas to broaden their audience. For example, she realizes that Katherine has never even met many of her writers before the crisis meeting. Molly's new cabin mate, Burditt, played by Max Casella, encourages her to submit her own material, which Katherine accepts for the next show, though she ultimately decides to omit a politically charged joke, revealing deep-seated beliefs.
A miscalculated attempt to attract current celebrities backfires when the YouTube sensation Mimi Mismatch storms off, feeling mocked rather than celebrated. Meanwhile, Tom Campbell, played by Reid Scott, grows increasingly apprehensive about Molly's influence over Katherine.
Following this incident, Katherine employs a PR expert who suggests hosting a media party at her residence. At the event, Molly meets Katherine's kind-hearted husband, John Lithgow as Walter, and deftly navigates a challenging media inquiry about Katherine's treatment of writers.
Things come to a head at a charity event where Molly performs stand-up, despite Katherine’s objections. Intrigued by how Molly turns her personal setbacks into comedic material, Katherine decides to take a more personal and politically charged approach in her own humor. This pivot significantly boosts the show's engagement and ultimately, its ratings—a feat that even Caroline's family acknowledges.
However, Katherine soon learns of a new replacement opportunity for her in the form of the young, popular comedian Daniel Tennant, played by Ike Barinholtz, whose lewd comedy style clashes with Katherine's principles. Defying the network's expectations and with her writers’ support, Katherine makes a bold on-air decision to continue her career.
The situation escalates further when an email from Charlie, played by Hugh Dancy, is leaked, exposing an affair between them from when Walter was diagnosed with Parkinson's disease. Amid the chaos, Katherine retaliates by firing Molly after a confrontation regarding her poor behavior following the leak, leading to Molly's suggestion to publicly address the affair.
In a heartfelt twist, Katherine reconciles with Walter and her writing team, ultimately confessing her infidelity to her audience. Her genuine remorse and commitment to her show sway Caroline to retain her position. After apologizing to Molly and reinstating her, the duo's efforts manifest in a year’s time, marked by a diverse writing team and Molly's promotion to co-lead monologue writer, alongside Katherine's show, which stands stronger and more successful than ever.
