Kelly Reilly is stepping back into dark, emotionally charged territory — and this time, the ghosts aren’t just personal. Sky has unveiled the trailer for Under Salt Marsh, a new crime drama set to premiere on January 30, promising buried truths, fractured partnerships, and a community that refuses to stay quiet.
Fresh off her acclaimed run on Yellowstone, Reilly headlines the series alongside Rafe Spall, with the show positioning itself as one of Sky’s most ambitious original dramas yet.
A Cold Case That Never Let Go
Reilly plays Jackie Ellis, a former detective whose life was derailed by a devastating case three years ago — one that cost her not just her career, but the trust of her own family. The series opens with a shocking discovery that rips open that old wound, forcing Jackie back into the very investigation that broke her.
To get answers, she must reunite with her estranged former partner, Detective Eric Bull (Rafe Spall). Their uneasy alliance becomes the emotional spine of the show as they dig into a case that threatens to expose long-buried secrets in the coastal town of Morfa Halen.
A Community Built on Silence
As Jackie and Eric retrace old steps, it becomes clear that Morfa Halen is less a backdrop and more a character — one shaped by silence, loyalty, and complicity. The trailer teases a slow-burning mystery where everyone knows something, but no one wants to say it out loud.
The investigation doesn’t just test their professional instincts; it forces both characters to confront unresolved guilt, mistrust, and the cost of unfinished justice.
A Heavyweight Ensemble
Beyond Reilly and Spall, Under Salt Marsh boasts an impressive supporting cast led by Jonathan Pryce, alongside Naomi Yang, Dinita Gohil, Brian Gleeson, Kimberley Nixon, and Harry Lawtey.
Reilly also serves as an executive producer on the series, further anchoring her creative investment in the project.
Behind the Camera
The series is produced by Little Door Productions in association with Sky Studios, with support from the Welsh Government via Creative Wales.
Claire Oakley serves as lead writer and director, with additional episodes written by Jonathan Harbottle and Nikita Lalwani, and directed by Mary Nighy. The creative team signals a strong focus on character-driven storytelling over flashy procedural beats.
Final Words
With its moody setting, emotionally fractured leads, and a mystery rooted in communal guilt, Under Salt Marsh looks set to deliver a brooding, atmospheric crime drama rather than a quick-hit thriller.
If the trailer is anything to go by, this is a story less about catching a culprit — and more about confronting what a town chose to hide.
