Under Salt Marsh
Under Salt Marsh
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Under Salt Marsh

"No secrets are safe from the storm."

6.8
Yr 2026
Rt 60m
Status Ended
Crime Mystery
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Series Brief

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.

Critical Reception

What critics are saying

Score 80 /100

Critical reception for Under Salt Marsh is largely positive, with reviewers praising the Welsh noir crime drama for its rich atmosphere, compelling mystery, and psychological depth. Publications such as The Guardian and British Vogue highlighted the series as a gripping, carefully paced thriller that elevates itself above standard offerings in the genre, benefiting greatly from its weather-beaten setting and authentic local community atmosphere.

Critics also lauded the show's strong native cast and distinct tonal execution. Outlets like AVForums noted that the series naturally subverts expectations by pairing a tense narrative with colorful characters, while The Upcoming praised how quickly the direction establishes a immersive, atmospheric world.

Not all praise was unreserved, however. A more tempered assessment from The Review Geek considered the series watchable and competent, but felt it lacked the unique flavor required to rise above being a standard, average entry in the crime mystery space.

“Carefully pacy and dripping in atmosphere, this thrilling six-parter sits above plenty of other offerings in its genre.”

“A top-tier largely native cast, weather-beaten setting and sense of local community brings a Cymru sensibility to the murder mystery.”

“This carefully plotted tale of the investigation into a small boy’s death is a compelling, psychologically astute watch...”

“Under Salt Marsh is not a bad show, but it lacks much in the way of flavour to rise above being perfectly average.”

Transmission Paths

Where to Watch

StackTV Amazon Channel
CA
fuboTV
CA
Sky Go
UK
Show 2 more
Global TV
CA
Now TV
UK
Why fans love it

Morfa Halen functions more like a character than a setting. The town sits in a fragile position between rising tides and imposing mountains, creating an inherent tension that pulses through the narrative. Kelly Reilly plays Jackie Ellis, a former detective whose return to investigative work is prompted by the death of a young student. The geography of the Welsh coast dictates the pace of the mystery, forcing a community already living on borrowed time to confront secrets they buried long ago.

The show threads a connection between a current tragedy and a cold case involving the disappearance of a child. By linking the drowning of a pupil to an unsolved event that derailed a career, the story focuses on the psychological toll of lingering trauma. It avoids conventional procedural beats in favor of examining how localized history and environmental pressure collapse onto a small population when the elements turn hostile.

Featured Players

Cast

Credited 42
Regulars 23
Longest run 6 eps
Kelly Reilly
Kelly Reilly
as Jackie Ellis
Rafe Spall
Rafe Spall
as Eric Bull
Naomi Yang
Naomi Yang
as Jess Deng
Harry Lawtey
Harry Lawtey
as Dylan Rees
Dino Fetscher
Dino Fetscher
as Gareth Morgan
Dinita Gohil
Dinita Gohil
as Nisha Jones
Kimberley Nixon
Kimberley Nixon
as Shell Hill
Julian Lewis Jones
Julian Lewis Jones
as Osian Northam
Show 34 more
Jonathan Pryce as Solomon Bevan Leisa Gwenllian as Kath Bevan 2 episodes Mark Stanley as Danny Hill 5 episodes Lizzie Annis as Cara Rees 5 episodes Brian Gleeson as Mac Jones 5 episodes Osian Emlyn as James Rees 6 episodes Gwïon Morris Jones as Eddie Bevan 6 episodes Martyn Ellis as Jim The Chippy 6 episodes Sam C. Wilson as Bryn Bevan 6 episodes Amara Atwal as Nessa Taman 6 episodes Dritan Kastrati as Victor Antonov 5 episodes Marilyn Cutts as Carys Northam 5 episodes Seeta Indrani as Ira Taman 5 episodes Rhodri Meilir as Ned Bevan 5 episodes Jonah James as Harry Bevan 5 episodes Osian Morgan as Alfie Bevan 4 episodes William Thomas as Owen Ellis 4 episodes Kate Entwistle as Uniformed Police 4 episodes Janeks Babidorics as August Antonov 3 episodes Morgan Watkins as Kieran Benbow 3 episodes Lois Meleri-Jones as Tess Bevan 3 episodes Eiry Thomas as Irene Hassan 3 episodes Stephen McKay as Morfa Local 3 episodes Charlie Josephine as Sunny Wray 2 episodes Jack Thomas-Humphreys as Cefin Hill 1 episode India Mullen as Lydia Taman 1 episode Rachel Lumberg as Kirsty Splendour 1 episode Maanuv Thiara as Devnand Taman 1 episode Bella Salisbury as Brooke Bevan (uncredited) 4 episodes Irys Bea Williams as Izzie Bevan (uncredited) 4 episodes Samuel W Hodgson as Uniformed Police (uncredited) 2 episodes Nigel James Bradley as Spider Islander (uncredited) 2 episodes Lucas Barnett as Nick (uncredited) 1 episode Jack Taruschio Thomas as Stuart (uncredited) 1 episode
Signal Match

Similarity

Where Under Salt Marsh overlaps with other shows, and exactly what they have in common.

Keyword Cloud

Keywords

wales thriller
Technical Sheet

Details

First Aired
January 30, 2026
Status
Ended
Episode Runtime
60 minutes
Origin
GB
TMDB Votes
61