
This episode covers the disturbing case of Peter Dupas, a serial killer responsible for multiple murders in Melbourne, Australia, including Nicole Patterson, Margaret Marr, and Messina Halvargas. It discusses Dupas's early life, his criminal history, and the brutal details of his crimes.
The episode begins with Irene Langley, a phone sex worker, who received a terrifying call from a man detailing violent fantasies, which later mirrored the mutilation of Margaret Marr. Margaret's body was discovered in 1997, leading to a cold case that remained unsolved for years.
As the narrative unfolds, the episode details the murder of Messina Halvargas in Faulkner Cemetery, where Dupas was known to stalk women. The investigation into Messina's murder linked Dupas to previous violent acts, showcasing a pattern of predatory behavior.
Dupas's eventual arrest and trial for the murders of Nicole Patterson and Margaret Marr are highlighted, revealing the gruesome nature of his crimes and the psychological profile of Dupas as a manipulative and dangerous individual.
The episode concludes with Dupas receiving multiple life sentences without parole, emphasizing the failures of the justice system that allowed him to reoffend despite his history of violence.
Peter Dupas, a serial killer, is discussed through his brutal murders and the failures of the justice system that allowed him to reoffend.

This episode stands out for the following:
How does that make you feel?The serial murders that shook Melbourne
Every day is nothing but misery in our house.The serial murders that shook Melbourne
I just find it hard to mix with people.The serial murders that shook Melbourne
We'll meet again someday.The serial murders that shook Melbourne
You regarded Nicole Patterson as nothing more than prey.The serial murders that shook Melbourne
You have no prospects of Rehabilitation, none.The serial murders that shook Melbourne