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The Final Problem

7.0 2026 TV Show Crime Mystery

In the spring of 1959, a retired actor, who previously played Sherlock Holmes, must investigate a murder at a small hotel on a tiny island near Mallorca.

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6 Shares actors and at least one genre with this title

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10 Ranked across franchise, crew, cast, themes, genre, era and audience scores
Under Salt Marsh poster
74% match TV

Morfa Halen is a tight-knit Welsh town precariously nestled between towering mountains and a fast-encroaching sea that threatens its very existence. As a once-in-a-generation storm begins to gather far out at sea, former detective turned teacher Jackie Ellis discovers the body of her 8-year-old pupil, Cefin, seemingly drowned. The discovery sends shockwaves through the community, reviving the ghost of an unsolved cold case that rocked the town three years prior - the disappearance of Jackie’s niece, Nessa, which cost her career.

Under Salt Marsh

★ 6.6 2026 Crime

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