On reopening several missing person's cases police found they were all connected to two men. The trail of missing people led them to a bank vault in Snowtown. Inside the vault, they found a number of barrels - all containing body parts.

On 19th April 1999, several times convicted criminal Peter Dupas posed as a new client of psychotherapist Nicky Patterson. Having made arrangements for his first appointment, 28-year-old Nicky welcomed Dupas into her home under the pretence that she would be giving him counselling for gambling. Dupas then attacked Nicky with a knife before mutilating her body.

On 20th July 1969, Derek Percy approached 12-year-old Yvonne Tuohy and her friend Shane Spiller whilst they were playing at their local beach in Warneet, Victoria. He snatched Yvonne into his car before trying to get Shane too, but Shane managed to defend himself.

The story of the shocking rape and murder of 29-year-old Jill Meagher, who died on her walk back home in 2012. A crime that left the nation outraged by a flawed parole system.

Katherine Mary Knight lived in the small town of Aberdeen, NSW. In the early hours of March 1st 2000, Knight attacked her de facto husband John Price by stabbing him repeatedly.

On 28th April 1996, 28-year-old Martin Bryant shot and killed 35 people in the popular Tasmanian tourist site of Port Arthur and its surrounding areas.

On 8th November 2010, Jason Downie broke into the house of his friend's girlfriend, where Chantelle Rowe and her parents were asleep. And killed them brutally.

Allison Baden-Clay was a beauty queen with a successful real estate husband. They lived in Queensland with their three young children. In 2012, Allison’s body was discovered in a creek, ten days after being reported missing by her husband. In July 2014, Gerard Baden-Clay was found guilty of murder after a protracted trial. He appealed the verdict and in 2015, to widespread outcry, his conviction was downgraded to manslaughter.

Raechel Betts was a young woman from the Melbourne suburbs whose life spiralled out of control after she began selling drugs on behalf of a male acquaintance. Tragically this man, unbeknownst to Raechel, was a double murderer who had slipped through the parole system and was free to kill again...

Dubbed the ‘Black Widow’, Patricia Byers effectively stripped her lovers before killing or trying to kill them to cover her crimes. Only diligent detective work would lead to her eventual imprisonment.

Morgan Huxley's decision to have one last beer lands him in the deadly hands of Daniel Kelsall, a disturbed young man who wants to act out his fantasies.

In October 1997, Law student Anu Singh held two dinner parties to say goodbye to her friends after she had allegedly divulged to them that she and her boyfriend Joe Cinque were to die in a suicide pact.

The Strathfield massacre in Sydney on the 17th August 1991 will be forever remembered as one of Australia's most shocking gun crimes. A lone gunman, Wade Frankum, entered a shopping mall one afternoon, had a cup of coffee and observed shoppers going about their business. Moments later, he stabbed a teenage girl next to him before opening fire on unsuspecting shoppers for ten minutes. The devastation left eight dead and six wounded. Before police arrived, he took his own life. Officers later found a collection of violent literature and films at his home - the only clue into why this killer took all those innocent lives. The crime provoked fierce debate on the country's gun laws.

Five-year-old Darcey Freeman suffered a horrific death at the hands of her father on the 29th January 2009. Driving her to her first day at school, he stopped the family car on the West Gate Bridge and callously threw her off the side, in full view of her two older brothers. He then returned to his car and drove to the law courts in central Melbourne where he handed himself in, pleading with officials to take his boys off him. In a trial that gripped the nation, the jury had to decide if Freeman was 'mad or bad'.