The end of Grantchester doesn’t mean the end of mystery—MASTERPIECE’s Mystery! lineup is far from over. Four returning series are back this fall with new episodes full of hidden motives, didn’t-see-it-coming twists, and very clever detectives. Whether you’re in the mood for cozy village sleuthing, classic detective work, or Anthony Horowitz’s intricate meta-mystery puzzles, there’s a case waiting to be solved. Read on for what’s returning, premiere dates, and how to watch.
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The Marlow Murder Club | Season 3 debuts Sept 6 at 8/7C
Marlow locals Judith Potts (retired archaeologist, puzzle master), Suzie Harris (dog walker), and Becks Starling (vicar’s wife) are now officially part of DI Tanika Malik’s crime investigation unit, serving as civilian advisors. How will their unconventional methods contribute to solving the sudden death of the town’s beloved mayor? The murder of a celebrity chef at his own cookbook launch party? Or a death at a university reunion—where Becks finds herself a suspect? This time, solving the case could be the only way to save their place on Malik’s team.
Stream previous seasons with PBS Passport.

(gentle music) – In Marlow, another person was found dead this morning.
We’re assuming this wasn’t an accident.
– To convict his killer we have to catch them first.
– [Becks] Let’s go!
– Here they come.
The three musketeers.
(driving rock music) – Oi, come back here!
– They found traces of poison.
– [Tanika] Keep eyes on all our suspects.
Let it play out.
– [Becks] Maybe there’s a connection.
– Look at this.
– Interesting.
I think I know who the killer is.
(driving rock music continues)
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Marble Hall Murders arrives Sept 6 @ 9/8c
Fans of Anthony Horowitz’s intricate meta mysteries have plenty to look forward to. Marble Hall Murders, the third and final installment of his Susan Ryeland series returns with Lesley Manville as the book editor prone to involvement in real-life murders, alongside Tim McMullan as the fastidious detective who leaves the world of fiction to help her. Ryeland is hired to work on a continuation novel in the fictional Atticus Pünd series—but finds herself a suspect in a gruesome crime tied to the storyline. As Susan Ryeland’s story reaches its conclusion, the biggest mystery may be what fate has in store for her.
Magpie Murders and Moonflower Murders are the first two installments in this series and full episodes of both stream on PBS Passport.

– [Publisher] We are going to publish a new Atticus Pünd detective story.
– Who’s gonna write it?
– Eliot Crace.
His grandmother was the most successful writer this country’s ever seen.
– [Susan] She died a natural death.
– What gave you that idea?
– Mr.
Pünd.
I heard something that shocked me to the core.
– Your job is to protect us from Susan Ryeland.
– Get off!
Read Eliot’s book, that’s where you’ll find the answer.
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Maigret | Season 2 premieres Oct 18
This contemporary adaptation from Homeland writer Patrick Harbinson brings author George Simenon’s brooding detective to life with a modern Parisian edge and offers an immersive look into one of crime fiction’s most quietly compelling figures. In Season 2, dramatic changes shake up Chief Inspector Maigret’s La Brigade Criminelle as a new boss questions his methods and attempts to bring the celebrated detective down a peg. One of Les Maigrets is transferred and replaced by someone who proves quite unpopular. Can Maigret stay one step ahead—not only of the criminals he pursues, but of the forces trying to change him?
New to Maigret? Catch up by streaming Season 1 on PBS Passport.

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The Gold | Season 2 premieres Oct 18 @ 10/9c
We return to the scene of the crime in The Gold’s final chapter. Following the conviction of some of those involved in the theft and handling of the Brink’s-Mat bullion, police realized they had only been on the trail of half the haul: Season 2 is inspired by theories surrounding what happened to the other half. The investigation shifts to the 1990s with a new generation of suspects involved in high-stakes money laundering and organized crime on an international level. The series sees the return of Hugh Bonneville, Jack Lowden, and Tom Cullen, while welcoming new cast including Tom Hughes (Victoria), Stephen Campbell Moore (Downton Abbey), and Sam Spruell (Fargo).
Stream Season 1 of The Gold on PBS Passport. Then WatchThe GoldSeason 2 preview.

– Where do we start?
– At the beginning.
– Six blokes in a van.
(upbeat music) – The Brink’s-Mat investigation is now about the largest criminal fortune in British history.
– [McLean] 150 million, all built on Brink’s-Mat.
– [Boyce] And about us taking it from them.
Find Charlie Miller and get enough on John Palmer to bring him down.
– I don’t know where the other half of the Brink’s-Mat gold is.
(he laughs) – There are better ways to launder money and I can show you them.
– Whatever it is you’re doing, I can stop it.
– No you can’t, because you let in the wolves and the wolves don’t leave.
(gunshot fires) – That detective’s got a bullseye on his back.
– Flying squad!
Nick him!
(bottles smashing) – When you are on the streets of London, don’t you ever look around and wonder where all their money comes from?
– If he gets away now, he’s got the money to stay gone forever.
– I built a bloody empire.
– Empires fall, Mr.
Palmer.
– I’ll decide when I’m finished!
(he grunts) (siren wails) – Hello, John.
I Need a bit of help.