In April 2011, a respectable family home in Nantes, France, sat silent behind closed shutters. Letters claimed the Dupont de Ligonnès family had vanished into witness protection, but beneath the terrace, police would discover something far darker.

Agnès Dupont de Ligonnès and her four children were found buried under the house. Their father, Xavier, a man from an old aristocratic French family, was gone.

Was this a family annihilation followed by suicide? Or did “the vanishing count” stage one of the most chilling escapes in modern true crime?

In this episode of Dead Ends, we look at the murders, the strange letters, the missed police searches, Xavier’s final movements through southern France, and the question that still haunts the case:

Where is Xavier Dupont de Ligonnès?

0:00 Introduction

6:24 Case Overview

7:35 Xavier Dupont de Ligonnès

10:36 The Dupont de Ligonnès Family

15:18 Financial Struggles

19:18 The Gun

20:49 The Timeline

28:58 The Letters

35:00 The Police Visit the House

37:38 The Bodies are Discovered

46:20 Tracking Xavier

49:41 The Last Confirmed Sightings of Xavier

51:39 Where is Xavier Dupont de Ligonnès?

59:18 Final Thoughts and Theories

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