# Where to watch Les Mystères des grottes du Régulus (2025) in the UK

> Les Mystères des grottes du Régulus (2025) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 16 May 2026 by ScreenSearch.

**Type:** Film  
**Year:** 2025  
**TMDB rating:** 7.7/10  
**Genres:** Crime, Mystery, TV Movie  
**Region:** United Kingdom (GB)  
**Last verified:** 16 May 2026 (2026-05-16T11:41:38.315Z)  

## Synopsis

A murder case rocks a small town when Julien Monnier is found dead, stabbed near the cave dwellings known as "Les grottes du Régulus." An old book is found beside him. Grace, a police captain, is put in charge of the investigation and discovers similarities with a ten-year-old case: a 17-year-old girl, Sarah, had been found dead, also stabbed, in the same caves. Grâce calls on Alex, her childhood friend who has become an expert in old books. He had investigated Sarah's death when he was a police officer. Alex reluctantly revisits the past and agrees to help, partly to reconnect with Grâce, his lost love. Their reunion rekindles old feelings and painful memories linked to their separation. As the investigation progresses, the memories of the protagonists and suspects become intertwined. Grace and Alex relive their past, but are confronted with conflicting memories and unspoken words.

## Streaming options in the United Kingdom

No current UK streaming, rental, or purchase listings were found for Les Mystères des grottes du Régulus in our daily-updated TMDB feed. The title may be on physical media only, awaiting UK release, or in a temporary licensing gap.

## Frequently asked questions

**Where can I watch Les Mystères des grottes du Régulus in the UK?**

Les Mystères des grottes du Régulus (2025) is not currently listed by any UK streaming, rental, or purchase service in our daily-updated TMDB feed. It may be on physical media, an aggregator, or pending a UK release. Check back later — availability changes frequently.

**Is Les Mystères des grottes du Régulus on Netflix, Disney+ or Amazon Prime Video in the UK?**

Les Mystères des grottes du Régulus is not currently included with any major UK subscription service. It may still be available to rent or buy.

**How accurate is this film's availability data?**

Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.

## Sources

- Streaming availability: The Movie Database (TMDB), refreshed daily.
- Underlying licensing data: JustWatch.
- Canonical URL: https://www.screensearch.co.uk/watch/movie/1442677/les-mysteres-des-grottes-du-regulus-2025
- Poster image: https://image.tmdb.org/t/p/w500/nVHFOr3dJF9rF4eAO9BJA22uW23.jpg
- JSON variant: https://www.screensearch.co.uk/watch/movie/1442677/les-mysteres-des-grottes-du-regulus-2025.json

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