Les Mystères des grottes du Régulus poster

Les Mystères des grottes du Régulus

7.5(4)2025—1

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.

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Status
Released
Budget
—
Box office
—
Language
French
Part of Les Mystères · 18 films

Top billed cast

Behind the camera

Director

Lorie Pester

Produced in

France, Belgium

Gallery

Still from Les Mystères des grottes du RégulusStill from Les Mystères des grottes du Régulus

Videos

No extra videos are listed for this title yet.

Release dates

  • BelgiumBE

    • TVLa Une30 Sept 2025
  • FranceFR

    • Theatrical (limited)Avant-première6 Jul 2025
    • Digital / OTTFrance•tv2 May 2026
    • TVFrance•32 May 2026
  • SwitzerlandCH

    • TVRTS 112 Sept 2025

Frequently asked questions

Les Mystères des grottes du Régulus was released on 6 July 2025.

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