Mermaid Down
A mermaid is ripped from the ocean by a fishing crew only to be tortured and to have her tail cut off. A seemingly helpful stranger intervenes, but then locks her away in an institution for mentally disturbed young women, where no one believes she is a mermaid. With no way out, she is forced to count on her survival instincts, and fight for her life at all costs.
Below are the streaming services currently carrying the movie “Mermaid Down” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch Mermaid Down in United Kingdom
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Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 25 Sept 2026.