Under Salt Marsh is a compelling 6-part British crime drama that premiered on Sky Atlantic and NOW in January 2026.
Set in the fictional Welsh coastal town of Morfa Halen, the series follows Jackie Ellis (Kelly Reilly), a former detective turned teacher, who makes a shocking discovery when she finds the body of her 8-year-old pupil. As a once-in-a-generation storm threatens to wash away crucial evidence, Jackie is forced to team up with her estranged ex-partner, Detective Eric Bull (Rafe Spall), to solve the case before it’s too late.
What makes it stand out:
- Atmospheric and moody setting with the sea and an approaching storm playing a major role
- Strong performances from Kelly Reilly and Rafe Spall
- Deeply human story exploring grief, community secrets, guilt, and resilience
- Classic slow-burn British crime drama with psychological depth
The series has been praised for its tense storytelling, strong character development, and haunting coastal visuals. Many viewers have compared it favorably to The Missing, Broadchurch, and Happy Valley.
Main Cast:
- Kelly Reilly (Yellowstone, Pride & Prejudice) as Jackie Ellis
- Rafe Spall (Life of Pi, Trying) as Detective Eric Bull
- Strong supporting cast including Jonathan Pryce, Brian Gleeson, and Mark Stanley
If you enjoy moody, character-driven crime thrillers with emotional weight and a strong sense of place, Under Salt Marsh is definitely worth watching.
Have you started Under Salt Marsh yet? What did you think of the first few episodes?
All episodes are available on Sky Atlantic / NOW (UK) and may be available on other platforms depending on your region.
