999 Murderer Calling, The Fentanyl Killer

Luke D’Wit tricked his millionaire neighbors, Stephen and Carol Baxter, into thinking he was a harmless ‘I.T. geek’, before poisoning them so he could take over their business. The story of how his harrowing 999 call helped police bring him to justice.

A young mother is feared dead. Seven years later, her ex-partner dials 999 admitting he's responsible. After he retracts his confession, an undercover cop gets to the truth. Plus, the heartbreaking death of a 10-month-old baby, and his parents' 999 lies.

Pharmacist Mitesh Patel strangled his wife in order to claim insurance and start a new life with his lover. After ransacking their home to make it look like a burglary gone wrong, he made a tearful 999 call, unknowingly leaving clues as he spoke.

Together 30 years, David and Ann-Marie Pomphret seemed a close, and loving couple. When Ann-Marie is found battered to death, a distraught David dials 999. Forensic scientists detect microscopic blood cells on his unwashed socks and the truth is revealed.

Andrew Pearson kidnapped his ex-partner Natalie Harker before strangling, drowning, and sexually assaulting her. In a distraught 999 call, he then tried to claim her death was an accident, leaving a series of clues as he spoke.

The 999 call later said to be worthy of an Oscar nomination. Julie Dixon says two masked men set fire to her partner's workshop, killing him. But she's the only witness. Soon, investigators make a shock discovery, and the lies begin to unravel.

Ex-Commando and trained killer Collin Reeves stabbed his two neighbours to death after a long-running parking dispute. He claimed his actions were due to a mental breakdown caused by his Army service. But his cool and calm 999 call told a different story.

It sounds like a routine 999 call, but it's a deadly trap. The caller is a killer who's vowed vengeance on the police. When two unarmed female police officers turn up to investigate, they are brutally murdered by one of Britain's most wanted fugitives.