Last Judgment: an immersive investigation at the Kergorlay-Langsdorff Hotel in Paris

What if the killer helps you quietly crack the case... ? It’s still up to you to identify the culprit with "Jugement Dernier, Détective Party", at the Hôtel Kergorlay-Langsdorff in Paris, starting on October 10, 2026. For this immersive theatre show, 5e Acte invites you to 9, rue de l’Amiral d’Estaing, in the 16th arrondissement. For 1h25, the audience joins a police investigation alongside five actors, mixing clue examinations, conversations with the characters and personal deductions. A test of your thriller-reading instincts.

The plot drags us back to Paris in 1895. Acquitted of murdering his wife Juliette for lack of evidence, François Champetier remains a suspect in high society’s eyes. To clear his name, he gathers a team of detectives at his townhouse, where the crime scene has been kept intact. A reward also lures amateur sleuths: the audience thus steps into the story. But why reopen such a compromising case himself? Champetier’s invitation already raises a few questions.

How can you take part in this murder mystery party?

Everyone can go it alone, clash ideas with other spectators, or tag along with one of the five investigators. You survey the spaces, scrutinize the evidence, and grill the characters before drawing your own conclusions. The detectives bring their own methods and interests to the case: Clémence Brontin, a journalist who hunts secrets of the social elite, and Pauline Desroche, a forensic pathologist who reads the body’s tells. Their explanations can help untangle the mystery, but their impartiality also deserves to be questioned.

• To be read
• Immersive theater in Paris, now and in the future
• The best things to do in Paris and Île-de-France, November 16–22, 2026

Written by Frédéric Texier and directed by Nathalie Rémy, the show blends a detective plot with the freedom to follow your own trail. On the practical side, tickets are available to from 10 years old, with an accompanying adult for minors. Tickets can be reserved online: 39 € at the normal price, 35 € per person for groups of at least four participants, and 30 € for ages 10–14.

Detective fiction buffs know this trap: a convincing explanation can make you want to stop digging. The question is which lingering question you’ll reserve for later once the case finally seems solved.

This page may contain AI-assisted elements, more information here.