Netflix confirmed the premiere of Agatha Christie: The Seven Spheresa new period and mystery series that will appear on the platform in January 2026 and is based on the author’s novel of the same name. Set in 1925 England, the fiction combines crime, secrets and aristocracy and aims to appeal to fans of high society productions such as: Bridgerton And Downton Abbey.
The series was created by Chris Chibnallrecognized for his work in Doctor Whoand proposes a modern adaptation of the universe of Agatha Christie without losing the classic spirit of the author. This is a miniseries three episodes which is committed to an agile narrative, clearly defined characters and strong visuals.
Netflix is thus strengthening its strategy of adapting successful novels and expanding its offerings historical dramasa genre that has performed highly with audiences within the platform. In this case, the project also adds a component of Police secret this runs through the whole story.
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What is “Agatha Christie: The Seven Spheres” about?
The story is set England, 1925and begins during a lavish party in a country house, where an apparent prank ends in an unexpected crime. Due to this fact, all guests come under suspicion and an investigation is launched to uncover hidden secrets of British high society.
The axis of the story is laid out Lady Eileen “Bundle” Brentan intelligent and courageous young aristocrat who takes on an unexpected role as a researcher. Far from traditional detectives, her intuitive attitude and courage lead her to move forward in a case full of deception, alliances and betrayal.
As is usual in the works of Agatha Christie, the plot develops a number of themes complex characterseach with their own motivations, operating in an environment of luxury, privilege and social tension. Captivity and forced coexistence exacerbate conflicts and fuel tension.

The story revolves around a series of murders linked to a secret organization to which she remains loyal Detective style Characteristic of the author.
Netflix highlighted that it is a version “funny, epic and exciting” from Christie’s universe, designed for both classic readers and new audiences engaging with her stories for the first time.
When will it be released and who is in the cast?
Agatha Christie: The Seven Spheres will be published on January 15, 2026 and will have a single season with three episodes, all available on Netflix from the day of its release.
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The cast is led by Mia McKenna-BruceBAFTA winner for Rising Star, playing Lady Eileen “Bundle” Brent. Speaking about the project, the actress said: “Chris Chibnall’s scripts are brilliant and I’m delighted to be a part of it new interpretation from Agatha Christie’s iconic story.
The series also features Helena Bonham Carter like Lady Caterham, Martin Freeman in the role of Inspector Battle and Corey Mylchreestknown for Queen Charlotte: A Bridgerton Storylike Gerry Wade. The cast is rounded out by Ed Bluemel, Nabhaan Rizwan and other well-known British artists.

In addition to Chibnall as writer and executive producer, the creative team also includes Suzanne Mackie (The crown), Chris Sussman (Good omens) and Chris Sweeney, who also directs all three episodes. The production has the endorsement of Agatha Christie Limitedwith James Prichard, the author’s great-grandson, as executive producer.
“Bundle Brent is one of the young female characters smartest and funniest “My great-grandmother,” Prichard noted, adding, “Seeing her come to life in this series is a Dream comes true and I think viewers will love the world we’ve created.”
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