How many episodes are in Under Salt Marsh?

Under Salt Marsh has 6 episodes in this listed season.

When does Under Salt Marsh premiere?

Under Salt Marsh premieres on 2026-01-30.

Is Under Salt Marsh a new series?

Under Salt Marsh is a new series (Season 1).

NEW

Under Salt Marsh(2026)

Also known as Sous le marais salé • Bajo la marisma

Archived · Sky Atlantic

18+6 eps

S01

CrimeThriller

ON AIR: JAN 30Season 1Archived listing

What to Expect

PremiereLens read

Under Salt Marsh is a closed-ended British crime thriller, the kind that builds a single mystery and sees it through to a resolution rather than leaving threads dangling for a second season. The marshland setting shapes the mood from the start, trading urban noise for something quieter and more suffocating, where geography itself becomes a kind of pressure.

A student-teacher dynamic runs through the story, and in a community this small, that relationship carries weight in every direction. Suspicion has nowhere to travel far; the limited cast and tight geography mean motives stay close and personal, and the dread accumulates through proximity rather than incident.

Best for

small-town crime, marshland dread and Crime

Story lane

Crime and Thriller

Commitment

Season 1 · 6 episodes

Where

Sky Atlantic

Official Premise

Crime thriller series set in the marshlands.

Watch Next If This Is Your Lane

Start with the closest match, then check out two more shows with a similar feel, pace, mood, or theme.

Karen Pirie

ITVX • Jul 20, 2025

DramaCrime

When a historic murder case in St Andrews becomes the subject of a true crime podcast, fearless DS Karen Pirie is tasked with solving it.

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Strongest Match

Karen Pirie delivers the same tight British crime focus, with a cold-case mystery that unfolds through present-day pressure and flashback details. The detective’s methodical push through small-town relationships and workplace friction will feel familiar after Under Salt Marsh, but the investigation leans colder and more patient.

The Hack

ITVX • Sep 24, 2025

Drama

While a journalist uncovers evidence of phone hacking at a tabloid newspaper, a former police detective looks into the unsolved murder of a private investigator.

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Why this pick

The Hack keeps things contained and story-driven, trading marshland dread for British tabloid corruption and a cold-case murder threaded through two investigations. You get the same slow build of tension from close community connections and stubborn characters, but the danger feels more institutional and the pacing stays brisker.

The Dark

ITVX • Jul 12, 2026

CrimeThriller

When the body of a young man is found eerily staged in the idyllic Scottish wilderness, detective Monica Kennedy fears this is just the beginning of a terrifying campaign that will strike the heart of a rural community.As paranoia rises, suspicions and secrets are forced into the light, and the locals start to realise that there is a serial killer hidden amongst them. With her experience of dealing with the darkest of humanity Monica Kennedy quickly becomes entangled in a heightened game of cat and mouse with a cunning killer. Only she can stop this monster before he claims any more victims.But when her own history creeps up on her, she begins to lose trust in her own judgement. Will it be her own actions that are the biggest risk to herself and her family?

View show

Why this pick

The Dark brings the same rural, close-knit crime tension, where secrets spread fast and every conversation turns into a risk. After Under Salt Marsh, the paranoia in a tight Scottish community and the cat-and-mouse pressure between detective and killer land with similar intensity, but the tone turns darker and more relentless.

Want the bigger picture?

Get recommendations from a show you love See 3 more shows like Under Salt Marsh

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