British Mystery · PBS Masterpiece · September 2026
Marble Hall Murders
Book editor Susan Ryeland is hired to edit a new Atticus Pünd continuation novel, written by Eliot Crace, grandson of the world's most famous children's author. As Susan works through the manuscript, she starts noticing uncomfortable parallels to a real death in the Crace family two decades earlier — and finds herself pulled into danger all over again. Lesley Manville and Tim McMullan return for the third and final chapter of Anthony Horowitz's Susan Ryeland trilogy, following Magpie Murders and Moonflower Murders. Marble Hall Murders streams via PBS in the US and on BBC iPlayer in the UK.
Part of British TV Hub's British TV autumn 2026 preview.
New in 2026
About the show
Marble Hall Murders is the third and final installment of Anthony Horowitz's Susan Ryeland series, following Magpie Murders (2022) and Moonflower Murders (2024). Like its predecessors, it follows Horowitz's signature format: a present-day murder investigation that mirrors the plot of a fictional detective novel within the story. The TV adaptation relocates the fictional Atticus Pünd mystery to 1955 Corfu, a change from the South of France setting used in Horowitz's original novel. Lesley Manville and Tim McMullan return as Susan Ryeland and Atticus Pünd, joined by Patricia Hodge, Mark Bonnar, Jamie Blackley, and Zubin Varla.
Meet the Cast
Many of the actors play dual roles — one in Susan Ryeland's present-day world, one in the Atticus Pünd novel she's editing.
Susan Ryeland
Played by Lesley Manville
Seen in: World on Fire, Phantom Thread, The Crown
Susan is back in London editing a new Atticus Pünd manuscript, and finds herself drawn into a case that echoes one from her own past.
Atticus Pünd
Played by Tim McMullan
Seen in: Foyle's War, King Charles III, The Crown
The famed detective travels to Corfu in the novel-within-the-show, hoping to reconnect with his family roots.
Eliot Crace
Played by Jamie Blackley
Seen in: Outrageous, The Last Kingdom, Endeavour
Miriam Crace's grandson and an aspiring writer, working with Susan on the Pünd continuation novel.
Miriam Crace / Lady Margaret Chalfont
Played by Patricia Hodge
Seen in: All Creatures Great and Small, Roadkill, A Very English Scandal
Hodge plays a matriarch in both timelines: beloved children's author Miriam Crace in the present day, and the kinder Lady Margaret Chalfont within the novel.
Edward Crace / Elmer Waysmith
Played by Mark Bonnar
Seen in: Guilt, World on Fire, Unforgotten, Line of Duty
Bonnar plays Miriam's mild-mannered son Edward in the present day, and antiques dealer Elmer Waysmith within the novel.
Roland Crace / Robert Waysmith
Played by Harry Lloyd
Seen in: Game of Thrones, Slow Horses, Great Expectations (2011)
Lloyd is Miriam's grandson and PR manager for the family's publishing empire in the present day, and Lady Chalfont's stepson within the novel.
Jonathan Crace / Jeffrey Chalfont
Played by Rupert Penry-Jones
Seen in: Silk, Persuasion, MI-5
Penry-Jones plays the heir apparent in both stories: a corporate figure overseeing the Crace estate in the present, and an earl heir within the novel.
Frederick Turner / Achilles Vassilikos
Played by Zubin Varla
Seen in: Andor, Hostage, Little Dorrit
Varla is Miriam's adopted son, who manages Marble Hall, in the present day, and a police lieutenant within the novel's Corfu-set investigation.
Elaine Clover
Played by Amelia Bullmore
Seen in: Happy Valley, Gentleman Jack, Sherlock
The wife of Susan's would-be murderer from Magpie Murders, who reaches out to Susan with information about Eliot Crace.
DI Ian Blakeney
Played by Danny Sapani
Seen in: Killing Eve, The Diplomat, Harlots
A calm, capable detective investigating the present-day case — with Susan herself among his suspects.
Katie Williams
Played by Claire Rushbrook
Seen in: Home Fires, Rivals, A Very Royal Scandal
Susan's sister, navigating a new relationship after her divorce.
Full cast guide on PBS Masterpiece →
Where to watch in the US
PBS Masterpiece
Six episodes · PBS Passport or PBS Masterpiece Amazon Channel
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Watch the Trailer
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