When a hostile online feud turns deadly, detectives' hunt for a mysterious CIA operative leading to the discovery of a jaw dropping and vengeful catfishing scheme.

Model and mother Samira Frasch loved the spotlight, but when her glamorous life ends unexpectedly in her mansion pool, investigators turn their eyes toward the web of heated relationships surrounding her family.

A string of murders targeting prominent law officials leaves a small Texas town gripped by fear and investigators in a race against time to stop the killer before he strikes again.

When a woman is found brutally murdered in her workplace, a long list of suspects and a lack of DNA evidence means prosecutors must persuade a jury to send a man to prison based on circumstantial evidence alone.

After a devoted mother and her two children vanish suddenly, investigators work to expose the truth behind why they never came home.

When 19-year-old aspiring artist Sarah Stern goes missing just weeks before Christmas 2016, investigators suspect she may have died by suicide or run away from home. Then, one of Sarah's former classmates comes forward with chilling information.

On 20 July 2015, beloved 60-year-old chiropractor Mary Yoder falls ill and is rushed to hospital. Two days later, she dies, leaving her family and friends in a state of stunned disbelief. Police soon realise they've got a murder on their hands.

On 20 July 2015, beloved 60-year-old chiropractor Mary Yoder falls ill and is rushed to hospital. Two days later, she dies, leaving her family and friends in a state of stunned disbelief. Police soon realise they've got a murder on their hands.

In February 2014, Houston police receive a tip that a murder-for-hire plot is in the works and a woman's life may be in danger. What ensues is a high-pressure police sting operation, a staged kidnapping, a shocking suicide and an explosive trial.

When 18-year-old Conrad Roy is found asphyxiated in his pickup truck, his death is quickly ruled a suicide. But as detectives retrace Conrad's final moments, a trail of texts reveal a toxic teenage romance, turning the investigation upside down.

In November 2012, 37-year-old single mother Cari Farver mysteriously vanishes into thin air. In the days and months that follow, Cari's loved ones receive a string of increasingly strange texts from her, indicating she is alive and well.

In a murder case that makes headlines around the globe, a professional football player stands accused of killing his friend in cold blood.

When a brutal triple-homicide case with alleged ties to witchcraft heads to trial, questions about religious bias and the real motive-to-kill take centre stage.

When an off-duty white police officer, Amber Guyger, kills an unarmed black man, Botham Jean, in his own home in Dallas, racial tensions and calls for justice rise.