Name: Under Salt Marsh
Genre: Crime, Drama, Mystery & Thriller
Released: 2026
Duration: 50 min
Rating: 6.3
Cast: Kelly Reilly, Rafe Spall, Naomi Yang, Harry Lawtey, Dino Fetscher

Tv Show · 50 min · crm, drm, trl

A detective-turned-teacher investigates a shocking crime in her small town. As a massive storm approaches, she must work with her estranged ex-partner to solve the case before evidence disappears.

6.3 IMDb
7.0 TMDB
100% Rotten Tomatoes
79 JustWatch

Where to watch Under Salt Marsh

Available on 14 platforms across 14 countries.

Chart positions today

Currently charting in 20 countries, best placed at #131 in Australia.

Australia #131
United Kingdom #167
Norway #249
Denmark #281
Romania #338
Czech Republic #365
Italy #376
Slovakia #423
Croatia #495
Netherlands #500
Portugal #532
Finland #540
Poland #540
France #595
Hungary #620
Ireland #628
Spain #649
Sweden #705
Bulgaria #725
Canada #859

Available languages

Audio: English, French, Spanish

Subtitles: English, French

Chart history

Under Salt Marsh has spent 15 days in a top 3, 34 days in a top 10 and 118 days in a top 100 across the markets we track. Its best position anywhere is #1.

Seasons

1 season, 6 episodes in total.

Season 1 (2026) — 6 episodes

Cast

Kelly Reilly, Rafe Spall, Naomi Yang, Harry Lawtey, Dino Fetscher, Dinita Gohil, Kimberley Nixon, Julian Lewis Jones, Jonathan Pryce

Crew

Claire Oakley (writer), Scott Bassett (producer), Jonathan Harbottle (writer), Nikita Lalwani (writer)