A century after her literary debut, Lady Eileen “Bundle” Brent is finally stepping back into the spotlight. One of Agatha Christie’s most spirited creations — a young aristocrat with a fast car, a sharp mind, and a taste for trouble — will headline Netflix’s new limited series The Seven Dials Mystery. Written by Chris Chibnall, the creator of Broadchurch and Doctor Who, the three-part adaptation premieres on January 15, 2026, reimagining the wit, danger, and glamour of the 1920s through the lens of a heroine who’s always been ahead of her time.

Based on Christie’s 1929 novel, The Seven Dials Mystery begins as a prank that turns deadly. Gerry Wade, known as the group’s laziest houseguest, becomes the target of a harmless joke: eight alarm clocks set to ring in succession. But when morning comes, one clock is missing — and Gerry is dead. What starts as a joke unravels into tragedy, and it’s Bundle Brent who takes the wheel, quite literally, as she plunges into a web of espionage, secrets, and deception linked to a mysterious organization known as The Seven Dials.

The series is produced by Orchid Pictures, with James Prichard — Christie’s great-grandson — serving as executive producer alongside Suzanne Mackie (The Crown) and Chris Sussman (Good Omens). “Bundle Brent is one of my great-grandmother’s most humorous and sharp young characters,” Prichard said in a statement. “To see her brought to life through Chris Chibnall’s writing and this incredible production is a dream come true. I think viewers will fall in love with this world — and want more.”

Netflix has assembled a first-rate cast: Mia McKenna-Bruce, fresh off her breakout in How to Have Sex, stars as Bundle Brent, with Helena Bonham Carter as Lady Caterham, Martin Freeman as Superintendent Battle, Corey Mylchreest (Queen Charlotte) as Gerry Wade, Nabhaan Rizwan as Ronnie Devereux, and Ed Bluemel as Jimmy Thesiger. The ensemble gives the adaptation a cinematic weight — one part Downton Abbey, one part spy thriller — all under Chibnall’s steady hand. “Chris Chibnall’s scripts are brilliant, and I’m thrilled to be part of this new interpretation of Agatha Christie’s storytelling,” McKenna-Bruce said.

In Christie’s novels, Bundle only appears twice — in The Secret of Chimneys (1925) and The Seven Dials Mystery (1929) — yet her presence is unforgettable. She embodies a rare energy in Christie’s work: impulsive, irreverent, and irresistibly curious. While Hercule Poirot was the polished professional and Miss Marple the quiet observer, Bundle was something entirely different — a woman in motion, driven by instinct and a refusal to sit still. Her investigations are fueled not by logic, but by intuition and courage, reflecting the social shifts of the interwar years when women began to claim agency, space, and speed — often behind the wheel.

That vitality makes her return now feel particularly timely. Christie’s granddaughter once described Bundle as “the flapper who solves a crime,” and that’s exactly what makes her so contemporary. She’s young, privileged, flawed — but she acts. And that action is what distinguishes her from nearly every other detective in Christie’s world.

Chris Chibnall’s adaptation seems poised to restore that balance between elegance and danger, humor and heartbreak. If the novel was a charming mix of country-house mystery and spy caper, the Netflix version may dive deeper — exploring class, gender, and the cost of curiosity. Produced in partnership with Christie’s estate, it’s part of a broader renaissance of her works, following Kenneth Branagh’s recent Poirot films and the BBC’s darker reimaginings. But The Seven Dials Mystery stands apart because it reclaims a woman who had been left in the margins of the canon.

Bundle Brent was never meant to fade quietly into the archives of Agatha Christie’s imagination. She was written to drive — fast, fearlessly, and toward the unknown. Now, a hundred years later, Netflix gives her the open road again.

On January 15, 2026, the clocks will start ringing once more. And this time, all seven dials are set for Bundle.