Under Salt Marsh

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9 / 10
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Overview

Morfa Halen is a tight-knit Welsh town precariously nestled between towering mountains and a fast-encroaching sea that threatens its very existence. As a once-in-a-generation storm begins to gather far out at sea, former detective turned teacher Jackie Ellis discovers the body of her 8-year-old pupil, Cefin, seemingly drowned. The discovery sends shockwaves through the community, reviving the ghost of an unsolved cold case that rocked the town three years prior - the disappearance of Jackie’s niece, Nessa, which cost her career.

Media

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Under Salt Marsh | Official Trailer | Sky

Cast

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Actor Avatar
Rafe Spall
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Kelly Reilly
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Harry Lawtey
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Jonathan Pryce
Creator:
Claire Oakley
Fist Air Date:
2026-01-30
Episode Runtime:
60m
Production Companies:
Sky Studios, Little Door Productions
Genres:
Crime Mystery
Keywords:
thriller
More Show Details

Vote Average: 6.8/10

Vote Count: 43 Votes

Show Popularity: 14.5749

Show Status: Ended

Show Type: Miniseries

Spoken Languages: English

Review

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  1. Insomniacs Reviews
    9 Based on 1 Votes
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    ⭐ Insomniacs Rating: 9/10 THE SUMMARY Welcome to Morfa Halen, a fictional North Wales village where the tide is coming in and the secrets are bubbling up. *Under Salt Marsh* (2026) is a six-part Sky Original thriller that follows Jackie Ellis (Kelly Reilly), a former detective turned teacher who finds the body of an 8-year-old student in a drainage ditch. The discovery reopens the raw wounds of her niece’s unsolved disappearance from three years prior—a case that cost Jackie her career and her family's trust. As a once-in-a-generation storm bears down on the coast, she’s forced to reunite with her estranged former partner, Eric Bull (Rafe Spall), to find the truth before the evidence is literally washed away. By April 23, 2026, it’s officially the "prestige drama of the year," holding the title of Sky's most successful launch since *The Day of the Jackal*. THE PROS Kelly Reilly is a total win; she delivers a sincere, powerhouse performance that is a far cry from the "Beth Dutton" chaos, proving she’s the undisputed queen of the "tortured professional" archetype. Rafe Spall is the business as the stoic, regret-filled Eric Bull—their chemistry feels heavy with history and unspoken apologies. The show’s biggest win is its "atmospheric dread"; Claire Oakley’s direction uses the Welsh landscape like a trap, making the encroaching storm feel like a ticking clock that adds a sincere layer of tension to every scene. The supporting cast, featuring the legendary Jonathan Pryce as the town patriarch, provides a layer of "small-town gothic" that is the absolute business. THE CONS It is a 9/10 because it avoided the "10/10" mark by leaning into a few familiar "detective return to hometown" tropes that we’ve seen in everything from *The Kettering Incident* to *Hinterland*. It misses the perfect score because the middle episodes can feel like a bit of a Languid Burn, focusing heavily on the internal "water politics" of the town, which might be a head-scratcher for those looking for a straight-ahead thriller. It is total garbage that we only got six episodes; the world of Morfa Halen is so rich that a few more hours of character work would have been a masterstroke. For some, the unrelenting grayness and the "sad child" hook can be a bit of a heavy-hearted commitment. THE VERDICT A 9/10. It is a genuine, haunting, and meticulously crafted piece of television that sticks the landing with a devastatingly effective finale. I was slightly gutted when the credits rolled on the final episode back in February, but the 2026 "Season 2" rumors have been a sincere highlight of the TV news cycle this April. It is total garbage if you want a sunny, lighthearted mystery, but as a poignant exploration of grief and the weight of the past, it’s a vault essential. By April 23, 2026, it stands as the gold standard for "Celtic Noir" in the 900+ archive. INSOMNIAC TRIVIA * Scenery Stealer: The fictional town of Morfa Halen was filmed on location across North Wales, and the production team had to wait for real stormy weather to capture the "end-of-the-world" vibe that defines the series.* The *Yellowstone* Pivot: Kelly Reilly intentionally chose this role as a "grounding" exercise after years of playing Beth Dutton, wanting to portray a woman who was "quietly breaking" rather than "loudly destroying."* Ratings King: Since its premiere on January 30, 2026, the show has hit over 1.8 million viewers in its first week alone, making it one of the biggest digital hits for the Sky/NOW streaming platform this year.* 2026 Connection: This April, *Under Salt Marsh* has seen a 2026 "Climate Spike" after a real-life coastal flood in the UK mirrored the show's "encroaching tide" plotline, leading to a massive social media discourse about the series' prophetic weather themes. THE VIBE Like standing on a pier in a yellow raincoat while the wind howls in your ears. It is salt-stained, somber, and incredibly tense. It makes you want to buy a pair of sturdy wellies, distrust your local patriarch, and realize that some secrets are buried in the marsh for a reason—and they usually don't want to be found.

TV Show Poster

Season 1

6 Episodes

Air Date: 2026-01-30

Videos

Under Salt Marsh | Official Trailer | Sky
Under Salt Marsh | Official Teaser | Sky

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Reviews for

Under Salt Marsh

Comment (1)

  1. Insomniacs Reviews

    ⭐ Insomniacs Rating: 9/10

    THE SUMMARY
    Welcome to Morfa Halen, a fictional North Wales village where the tide is coming in and the secrets are bubbling up. *Under Salt Marsh* (2026) is a six-part Sky Original thriller that follows Jackie Ellis (Kelly Reilly), a former detective turned teacher who finds the body of an 8-year-old student in a drainage ditch. The discovery reopens the raw wounds of her niece’s unsolved disappearance from three years prior—a case that cost Jackie her career and her family’s trust. As a once-in-a-generation storm bears down on the coast, she’s forced to reunite with her estranged former partner, Eric Bull (Rafe Spall), to find the truth before the evidence is literally washed away. By April 23, 2026, it’s officially the “prestige drama of the year,” holding the title of Sky’s most successful launch since *The Day of the Jackal*.

    THE PROS
    Kelly Reilly is a total win; she delivers a sincere, powerhouse performance that is a far cry from the “Beth Dutton” chaos, proving she’s the undisputed queen of the “tortured professional” archetype. Rafe Spall is the business as the stoic, regret-filled Eric Bull—their chemistry feels heavy with history and unspoken apologies. The show’s biggest win is its “atmospheric dread”; Claire Oakley’s direction uses the Welsh landscape like a trap, making the encroaching storm feel like a ticking clock that adds a sincere layer of tension to every scene. The supporting cast, featuring the legendary Jonathan Pryce as the town patriarch, provides a layer of “small-town gothic” that is the absolute business.

    THE CONS
    It is a 9/10 because it avoided the “10/10” mark by leaning into a few familiar “detective return to hometown” tropes that we’ve seen in everything from *The Kettering Incident* to *Hinterland*. It misses the perfect score because the middle episodes can feel like a bit of a Languid Burn, focusing heavily on the internal “water politics” of the town, which might be a head-scratcher for those looking for a straight-ahead thriller. It is total garbage that we only got six episodes; the world of Morfa Halen is so rich that a few more hours of character work would have been a masterstroke. For some, the unrelenting grayness and the “sad child” hook can be a bit of a heavy-hearted commitment.

    THE VERDICT
    A 9/10. It is a genuine, haunting, and meticulously crafted piece of television that sticks the landing with a devastatingly effective finale. I was slightly gutted when the credits rolled on the final episode back in February, but the 2026 “Season 2” rumors have been a sincere highlight of the TV news cycle this April. It is total garbage if you want a sunny, lighthearted mystery, but as a poignant exploration of grief and the weight of the past, it’s a vault essential. By April 23, 2026, it stands as the gold standard for “Celtic Noir” in the 900+ archive.

    INSOMNIAC TRIVIA
    * Scenery Stealer: The fictional town of Morfa Halen was filmed on location across North Wales, and the production team had to wait for real stormy weather to capture the “end-of-the-world” vibe that defines the series.

    * The *Yellowstone* Pivot: Kelly Reilly intentionally chose this role as a “grounding” exercise after years of playing Beth Dutton, wanting to portray a woman who was “quietly breaking” rather than “loudly destroying.”

    * Ratings King: Since its premiere on January 30, 2026, the show has hit over 1.8 million viewers in its first week alone, making it one of the biggest digital hits for the Sky/NOW streaming platform this year.

    * 2026 Connection: This April, *Under Salt Marsh* has seen a 2026 “Climate Spike” after a real-life coastal flood in the UK mirrored the show’s “encroaching tide” plotline, leading to a massive social media discourse about the series’ prophetic weather themes.

    THE VIBE
    Like standing on a pier in a yellow raincoat while the wind howls in your ears. It is salt-stained, somber, and incredibly tense. It makes you want to buy a pair of sturdy wellies, distrust your local patriarch, and realize that some secrets are buried in the marsh for a reason—and they usually don’t want to be found.

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