Two ageing lovers escaped to Victoria's remote High Country to conduct their secret affair – and hav...

Janine Vaughan was 31 when she was murdered after accepting a lift on a night out in 2001. Our panel...

The world was told the Coronavirus leaped from animals to humans at a market in China – but many sci...

Toddler Jaidyn Leskie was murdered in 1997 in a case that transfixed Australia. Greg Domaszewicz, wh...

Russian President Vladimir Putin has unleashed chemical warfare on his opponents, poisoning them wit...

Nearly 400 people lost their lives to a design flaw in Boeing's 737 Max that caused two crashes, but...

"The Queen is dead, long live the King" will be the words echoed the instant Her Majesty Queen Eliza...

UFOs - A topic previously pushed into science fiction is suddenly being taken very seriously based o...

Following the ground-breaking investigation that examined the disappearance of elderly lovers Russel...

UI re-investigates the baffling case of Melbourne's "Mr Cruel" that involved a series of child abduc...

UI investigates Australia's delicate dance with nuclear energy, which many experts say is our only w...

Not since Adolf Hitler has the world feared a dictator like Vladimir Putin. Hitler's madness sparked...

Liz Hayes and Under Investigation's formidable experts investigate the strange death of a top SA cop...

In the 1980's and 90's, Sydney's gay community fell victim to ruthless bashings by savage gangs. Now...

After over a dozen killings in 18 months, Sydney's gangland wars are getting bloodier. Under Investi...

Between 1970 and 2018, 11 people have vanished or been murdered along the Flinders Highway, includin...

Travellers onboard cruise ships have seen violent crime, pollution, and now a COVID crisis. Liz Haye...

Nearly 50 years ago, 11-year-old Joanne Ratcliffe and 4-year-old Kirste Gordon were snatched from th...

Uncover the terrifying abuse faced by young, vulnerable women at the hands of the Esther Foundation,...

After government inspectors found a slug in a Melbourne catering company's factory, a public health...

Loving couple Ray and Jennie Kehlet join colleague Graham “Grumpy” Milne on a gold-prospecting trip...

Australia's first celebrity chef, star of radio and television Willi Koeppen, runs one of the countr...

One of the world's most unforgivable legal scandals. How South Australia's Chief Forensic Officer op...

Australia's most baffling maritime mystery, the 1988 disappearance of the Patanela just 10 miles off...

He was brave enough to stand up to the mafia in a country town. But Don Mackay paid the ultimate pri...

Four young police officers sent to a rural property are ambushed by violent extremists. They faced t...

One of Australia's most senior officers was killed in his own driveway they suspected a professional...

Richard Dorrough, ex-navy sailor, took his own life in 2014. He left behind a shocking note claiming...

Liz Hayes and her team of investigators assemble formerly top-secret diplomatic documents to expose...

While searching for a snake in her garage, a devoted mother is fatally shot in the back by her husba...

When a 12-year-old Queensland girl was brutally killed, her sister's boyfriend Graham Stafford was a...

Sandrine Jourdan was a vivacious mother of three living in the small town of Caboolture until she my...

It is every family’s nightmare. A mother goes out on her regular morning jog, and never returns. In...

Former WA cop Adrian Moore exploited his authority and the trust vested in police to manipulate, rap...

China's authoritarian government is quietly developing AI designed to control its citizens. Liz Haye...

Supposedly safe in witness protection, Andrew Petrelis, the star witness in a $40 million dollar dru...

The shooting of Kumanjayi Walker by former NT police officer Zachary Rolfe in 2019 sparked one of th...

The body of 15-year-old Eden Westbrook is found hanging from a tree in a public park. Liz Hayes and...