Two ageing lovers escaped to Victoria's remote High Country to conduct their secret affair – and have never been seen again.
Janine Vaughan was 31 when she was murdered after accepting a lift on a night out in 2001. Our panel uncovers shocking police tapes and unseen CCTV of...
The world was told the Coronavirus leaped from animals to humans at a market in China – but many scientists now fear it leaked from a lab. Experts rev...
Toddler Jaidyn Leskie was murdered in 1997 in a case that transfixed Australia. Greg Domaszewicz, who was acquitted of the killing, speaks out for the...
Russian President Vladimir Putin has unleashed chemical warfare on his opponents, poisoning them with deadly toxins. Our panel reveals evidence that m...
Nearly 400 people lost their lives to a design flaw in Boeing's 737 Max that caused two crashes, but the aircraft is back in the skies and Australians...
"The Queen is dead, long live the King" will be the words echoed the instant Her Majesty Queen Elizabeth II passes. UI investigates The Crown in a pos...
UFOs - A topic previously pushed into science fiction is suddenly being taken very seriously based on an extraordinary video, taken, and authenticated...
Following the ground-breaking investigation that examined the disappearance of elderly lovers Russell Hill and Carol Clay, from their remote campsite ...
UI re-investigates the baffling case of Melbourne's "Mr Cruel" that involved a series of child abductions and murder during the late-1980's.
UI investigates Australia's delicate dance with nuclear energy, which many experts say is our only way of surviving past fossil-fuels into a carbon-fr...
Not since Adolf Hitler has the world feared a dictator like Vladimir Putin. Hitler's madness sparked a World War - could Putin do the same?
Liz Hayes and Under Investigation's formidable experts investigate the strange death of a top SA cop in 1981. Written off as suicide for decades, comp...
In the 1980's and 90's, Sydney's gay community fell victim to ruthless bashings by savage gangs. Now, Under Investigation can reveal the role played b...
After over a dozen killings in 18 months, Sydney's gangland wars are getting bloodier. Under Investigation pulls back the curtain on the city's dark u...
Between 1970 and 2018, 11 people have vanished or been murdered along the Flinders Highway, including missing backpacker Tony Jones. Under Investigati...
Travellers onboard cruise ships have seen violent crime, pollution, and now a COVID crisis. Liz Hayes and a panel of experts examine whether it has le...
Nearly 50 years ago, 11-year-old Joanne Ratcliffe and 4-year-old Kirste Gordon were snatched from the Adelaide Oval. Groundbreaking new technology hel...
Uncover the terrifying abuse faced by young, vulnerable women at the hands of the Esther Foundation, a Perth cult once backed by some of the most powe...
After government inspectors found a slug in a Melbourne catering company's factory, a public health warning erupted into a bitter brawl between a Davi...
Loving couple Ray and Jennie Kehlet join colleague Graham “Grumpy” Milne on a gold-prospecting trip to the red heart of Western Australia. Three peop...
Australia's first celebrity chef, star of radio and television Willi Koeppen, runs one of the country's most successful restaurants before he vanishes...
One of the world's most unforgivable legal scandals. How South Australia's Chief Forensic Officer operated for decades with barely a qualification, pr...
Australia's most baffling maritime mystery, the 1988 disappearance of the Patanela just 10 miles off the coast of Sydney. No distress call. No debris....
He was brave enough to stand up to the mafia in a country town. But Don Mackay paid the ultimate price. His enemies weren't just mafia living by the c...
Four young police officers sent to a rural property are ambushed by violent extremists. They faced the siege at Wieambilla - the point when conspiracy...
One of Australia's most senior officers was killed in his own driveway they suspected a professional hit. Investigators jailed and then freed another....
Richard Dorrough, ex-navy sailor, took his own life in 2014. He left behind a shocking note claiming to have murdered three people, but no details to ...
Liz Hayes and her team of investigators assemble formerly top-secret diplomatic documents to expose what really happened to the Balibo Five, a team of...
While searching for a snake in her garage, a devoted mother is fatally shot in the back by her husband. Liz and her team of experts examine the events...
When a 12-year-old Queensland girl was brutally killed, her sister's boyfriend Graham Stafford was almost immediately convicted with her murder. Liz H...
Sandrine Jourdan was a vivacious mother of three living in the small town of Caboolture until she mysteriously vanished in 2012. Liz Hayes and her tea...
It is every family’s nightmare. A mother goes out on her regular morning jog, and never returns. In a special edition of Under Investigation on Wednes...
Former WA cop Adrian Moore exploited his authority and the trust vested in police to manipulate, rape, and abuse thirteen women over a decade before b...
China's authoritarian government is quietly developing AI designed to control its citizens. Liz Hayes and her team investigate just how far China's si...
Supposedly safe in witness protection, Andrew Petrelis, the star witness in a $40 million dollar drug importation is found dead. His death is deemed a...
The shooting of Kumanjayi Walker by former NT police officer Zachary Rolfe in 2019 sparked one of the most contentious and racially-charged criminal s...
The body of 15-year-old Eden Westbrook is found hanging from a tree in a public park. Liz Hayes and the panel discover serious flaws in the police inv...
