Under Salt Marsh is an upcoming British Sky original television crime thriller series starring Kelly Reilly.
Premise
As a huge storm starts to form far out at sea a teacher and former detective, Jackie Ellis (Kelly Reilly), finds the body of her 8-year-old student, Cefin, who appears to have drowned. This shocking discovery stirs up the town’s memories of an unresolved case from three years earlier—the disappearance of Jackie’s niece, Nessa, which ruined her career.
Cefin's death brings back Jackie’s old partner, Detective Eric Bull (Rafe Spall), to lead the investigation in a community where he previously failed. Believing the two cases are connected, Jackie and Bull must work together to uncover hidden secrets in Morfa Halen before the storm hits and wipes away any evidence.
Also starring Oscar nominee Sir Jonathan Pryce as the head of a family intimately connected to the crime, “Under Salt Marsh” is a gripping story of a close-knit community threatened by the powers of nature and torn apart by a terrible crime.[1]
The six-part series is created by Clare Oakley who directs, along with Mary Nighy. Scott Bassett is series producer Oakley is also an executive producer alongside Elwen Rowlands for Little Door Productions and Megan Spanjian for Sky Studios. Kelly Reilly was cast in the lead role in August 2024.[2] In October 2024, Rafe Spall, Jonathan Pryce, Kimberley Nixon and Harry Lawtey joined the cast, amongst others.[3]
Filming began in October 2024, with the production taking place entirely in Wales with sites in Barmouth, Fairbourne, Anglesey and South Wales.[4] Support for the project comes from Creative Wales.[5]