'Under Salt Marsh' is a new crime drama series that has gained attention since its debut on Sky, featuring prominent actors like Kelly Reilly and Rafe Spall. Set in a small Welsh coastal town, the series revolves around the murder of a young schoolboy which compels the community to confront past traumas linked to a previous child's disappearance. As the series unfolds weekly, it showcases the complexities and emotional turmoil within this close-knit community, highlighting how crime impacts the people involved.

Despite questions about its authenticity, the creator, Claire Oakley, has clarified that 'Under Salt Marsh' is a wholly fictional creation. The show's premise is rooted in a unique scenario of a seaside town facing the dual threat of crime and environmental decay—the town is metaphorically and literally disappearing into the sea. This imaginative setup allowed Oakley to craft a gripping narrative as detectives race against time to solve crimes before vital evidence is lost to the rising tides.

Viewers are thus invited to immerse themselves in a drama that, while steeped in fictional storytelling, presents a compelling representation of life in a town beleaguered by its own vulnerabilities. The show's success lies in its ability to blend suspense with character-driven storytelling, making the audience contemplate the fragility of not just physical spaces but also the memories and lives intertwined within them.