<div>A young French au pair came to London chasing language lessons and adventure—then vanished into the twisted paranoia of the couple who employed her. When neighbors saw black smoke rising from a garden, firefighters uncovered a horror so bizarre it defied belief. This episode unravels how a shared delusion, jealousy, and control turned a home into a torture chamber, exposing the dark psychology behind <em>folie à deux</em> and the cracks in the system that failed Sophie Lionnet. </div>

A young French au pair came to London chasing language lessons and adventure—then vanished into the twisted paranoia of the couple who employed her. When neighbors saw black smoke rising from a garden, firefighters uncovered a horror so bizarre it defied belief. This episode unravels how a shared delusion, jealousy, and control turned a home into a torture chamber, exposing the dark psychology behind folie à deux and the cracks in the system that failed Sophie Lionnet.

A young French au pair came to London chasing language lessons and adventure—then vanished into the twisted paranoia of the couple who employed her. When neighbors saw black smoke rising from a garden, firefighters uncovered a horror so bizarre it defied belief. This episode unravels how a shared delusion, jealousy, and control turned a home into a torture chamber, exposing the dark psychology behind <em>folie à deux</em> and the cracks in the system that failed Sophie Lionnet.&nbsp;

Toxic Delusion: The Murder of Sophie Lionnet

<p>Host Melissa McCarty is an Emmy nominated investigative journalist with more than 20 years of true crime experience. Covering both solved and unsolved cases, She traveled the country confronting accused and convicted killers while also shedding light on the heartache violent acts cause. What sets her apart is the compelling storytelling and unique access to the people involved in each case which gives a 360-degree view of the crimes told directly from the source: the victim, their loved ones, experts, law enforcement, and the killers themselves. Melissa had two friends murdered at a young age and lost her brother suddenly and recently, giving her space to personally understand grief and violence. </p>

True Crime

Host Melissa McCarty is an Emmy nominated investigative journalist with more than 20 years of true crime experience. Covering both solved and unsolved cases, She traveled the country confronting accused and convicted killers while also shedding light on the heartache violent acts cause. What sets her apart is the compelling storytelling and unique access to the people involved in each case which gives a 360-degree view of the crimes told directly from the source: the victim, their loved ones, experts, law enforcement, and the killers themselves. Melissa had two friends murdered at a young age and lost her brother suddenly and recently, giving her space to personally understand grief and violence.

<p>Host Melissa McCarty is an Emmy nominated investigative journalist with more than 20 years of true crime experience. Covering both solved and unsolved cases, She traveled the country confronting accused and convicted killers while also shedding light on the heartache violent acts cause. What sets her apart is the compelling storytelling and unique access to the people involved in each case which gives a 360-degree view of the crimes told directly from the source: the victim, their loved ones, experts, law enforcement, and the killers themselves. Melissa had two friends murdered at a young age and lost her brother suddenly and recently, giving her space to personally understand grief and violence.&nbsp;</p>

Share Toxic Delusion: The Murder of Sophie Lionnet

Sign up to save your podcasts

Toxic Delusion: The Murder of Sophie Lionnet

Toxic Delusion: The Murder of Sophie Lionnet

More shows like Killer Genes

Missing

20/20

48 Hours

MURDERISH

Crime Junkie

Hell and Gone

True Crime News: The Podcast

Dateline NBC

My Life of Crime with Erin Moriarty

Serialously with Annie Elise

Anatomy of Murder

Mind of a Monster: The Killer Nurse

Betrayal: Weekly

Campus Killings

Murder Files Unsealed