Peter, along with his five friends, once performed together in a lively Cambridge University student comedy troupe. The story begins on New Year's Eve in 1983, when they host a small gathering at Peter's family's country estate to mark the arrival of the new year. At this event, the group attempts to entertain some somewhat disinterested family friends and the housekeeper, Vera, who has raised her young son Paul. Their performances are met with limited enthusiasm from the partygoers, highlighting their youthful exuberance and perhaps their lack of recognition at that time.
A decade later, the scene shifts to the winter of 1992-1993, when Peter, now the owner of the estate, invites his childhood friends to spend the New Year's weekend together once again. This reunion includes Andrew (/actor/kenneth-branagh), who has made a career in Hollywood as a writer; Emma Thompson (/actor/emma-thompson), as Maggie, an eccentric publisher; Hugh Laurie (/actor/hugh-laurie), as Roger Charleston; Rita Rudner (/actor/rita-rudner), portraying Carol Benson, Andrew’s American TV star wife; and Tony Slattery (/actor/tony-slattery), as Brian, an impolite and recently married lover of Sarah. Joining them are Sarah (), a glamorous costume designer, and Vera along with her now-grown son Paul, played by Alex Lowe, still at the estate, but Vera plans to leave immediately after the weekend, especially as Peter intends to sell the house.
Throughout this weekend, underlying tensions surface among the friends. Andrew and his wife Carol find their marriage strained by her career demands, worsened when Mary (likely played by Nicola Wright), suggests that Andrew and Sarah were once engaged—a revelation that stirs jealousy and discomfort. Roger and Mary are battling the aftermath of a personal tragedy, with Mary frequently ringing home and emotionally struggling. The revelation that they lost one of their twin toddler children nine months earlier adds a somber layer to their ongoing grief.
Maggie, lonely and eager for a connection beyond friendship, tries to seduce Peter, who confesses to being bisexual but no longer involved with either sex. Meanwhile, Maggie's attempts lead her to a makeover by Carol, resulting in her seducing Paul. Carol decides to leave her marriage with Andrew and returns to America, while Andrew, after a period of sobriety, falls back into drinking problems, illustrating how personal struggles persist beneath the surface.
Other significant moments involve Roger and Mary reaching a cathartic emotional breakthrough, allowing them to confront their grief and her overprotectiveness of their surviving child. Brian, played by Tony Slattery, calls his wife, who arrives to pick him up after realizing that Sarah is only interested in what belongs to someone else, not in him.
The culmination of the film is a revealing and heartfelt moment when Peter discloses the real reason he brought everyone together: he is HIV-positive. His friends, faced with their own problems, ultimately come together in support and solidarity, vowing to help him through his situation. This moment underscores themes of friendship, resilience, and the importance of standing by one another during difficult times.
Through moments of humor, sadness, and truth, the film paints a complex picture of friendship and personal growth. It explores how individuals change over the years, the impact of past tragedies, and the strength found in honesty and mutual support during life's most challenging moments.