Our Toughest Cases

Murder and violent sexual attacks; there are certain crimes that take their toll on even the most experienced of officers. In this series, we hear from the officers who relive the toughest cases they’ve ever faced and provide first-hand insight into cases that had seismic repercussions and shook entire communities to their core.

The Dawn Wall

Rock climbers Tommy Caldwell and Kevin Jorgeson captivated the world with their effort to climb THE DAWN WALL - a seemingly impossible 3,000 foot rock face in Yosemite National Park. The pair lived on the vertical cliff for weeks, igniting a frenzy of global media attention. For Caldwell, this was the culmination of a lifetime defined by overcoming obstacles. At age 22, he was taken hostage by rebels in Kyrgyzstan. Shortly after, he lost his index finger in an accident. When his marriage fell apart, he escaped the pain by fixating on the extraordinary goal of free climbing the Dawn Wall. Blurring the line between dedication and obsession, Caldwell and Jorgeson spent years meticulously plotting and practicing their route. On the final attempt, with the world watching, Caldwell is faced with a moment of truth. Should he abandon his partner to fulfill his ultimate dream, or risk his own success for the sake of their friendship?

The Eunuch Maker

In 2022, headlines broke that a group of men were performing castrations and livestreaming them to paying customers online. Journalist Marcel Theroux explores the dark world of THE EUNUCH MAKER. The terrifyingly-named Eunuch Maker was accused of being the cult-like leader of a group that severed genitals, sold body parts, and earned hundreds of thousands of pounds. With unprecedented access to those who underwent castration, and those at the heart of the inner circle, this is a story about sex, gender identity, manipulation, personal freedom and the limits of consent. Who is the Eunuch Maker? Why did he mutilate others? And why does the globe-spanning voluntary eunuch community seek castration?

The Playboy Bunny Murder

The Playboy Club in swinging seventies London was the most financially lucrative and internationally infamous site in all of Hugh Hefner’s notorious empire. Glamour, wealth, status – it was once a haven for Hollywood stars, politicians and organized crime. It was also the backdrop of one of the world’s most enduring unsolved murder cases. In this cinematic and evocative new true-crime series, journalist and author Marcel Theroux takes viewers to the enchantment and exoticism of 1970’s Mayfair and his obsessive quest to find out who killed these 4 young women. The dogged and fearless investigation leaves no stone unturned, and no door un-knocked, as he travels across the globe to hunt down suspects, and search for witnesses and family members still haunted by these tragic murders.

Body In The Suitcase

On the 11th of June, 2021, CCTV shows Jemma Mitchell dragging a large blue suitcase towards her church friend Deborah Chong’s home. Hours later, Mitchell is recorded leaving the area, dragging two visibly heavy suitcases behind her. But it’s not until Deborah’s decapitated body is discovered two weeks later that the chilling significance of these images hits home. BODY IN THE SUITCASE is a gripping, two-part special, that takes viewers deep into the shocking twists and turns of an unprecedented case, through first-hand accounts from family members, eyewitnesses and police. Could polite, middle-class osteopath Jemma Mitchell really have used that suitcase to transport her friend’s dead body? Had she killed her? And, if so, how had their devout Christian friendship descended into murder?

The Jury: Murder Trial

THE JURY: MURDER TRIAL is a ground-breaking experiment that asks profound questions about how we administer justice - by putting the jury system itself on trial. For the first time ever, we examine the fairness of the system, and the inner workings of justice in the UK. Filmed over ten days, a real murder trial is recreated word-for-word from the original transcripts, and two randomly-chosen juries, neither of whom are aware of the other, are asked to judge. The case? A man who admits he killed his wife, but whose defence maintains that he lost control, and is therefore not guilty of murder. What will the two juries decide, and why? How well will they follow the complexities of the law? And after they have deliberated, will they agree with each other’s verdicts? FORMAT AVAILABLE Awards: Best Reality Show, 2025 BAFTA Television Awards Best Factual Entertainment Format, 2024 International Format Awards Ratings Highlights: -Episode 1 was the highest rated new format launch in 10 years and the 3rd highest unscripted launch on C4 in 10 years -Episode 1 had a 112% higher rating than the slot average, and 124% higher audience share than average -In the first week of launch, the series as a whole is the strongest streaming series of any genre currently on the Channel 4 platform.

I Am A Stalker

I AM A STALKER takes a chilling, first-of-its-kind look at the disturbing crime of stalking - told through the eyes of both perpetrators and survivors. Across eight episodes, convicted stalkers speak candidly about the twisted path from attraction to obsession, while survivors share powerful accounts of the trauma they endured and the fight for justice. From the producers of Netflix’s global hit I Am A Killer, this gripping new series profiles some of the most notorious stalkers behind bars today - as they reveal, in their own words, how love spiralled into terror.

Cocaine: Living With The Cartels

Cocaine consumption is at its highest level in 30 years, with middleclass millennials spending more money than ever on the drug. In this series, four recreational cocaine users are about to discover the true cost of their party lifestyles. We go behind the false glamour of cocaine as the ‘jet-set drug’ to reveal the heart-breaking reality of how lives across the globe are being destroyed by the white powder as we take four consumers to the terror filled jungles, favelas and drug cartels of Colombia and then back to the grim reality of the cocaine trade back in their own neighbourhoods.

A Killer's Mistake

A KILLER'S MISTAKE returns with a gripping fifth series, unraveling the chilling stories behind ten shocking murders. Each episode dives into a different case, revealing the fatal mistakes that ultimately led to a killer’s capture. Using emotional interviews, expert analysis, and dramatic reconstructions, the series uncovers the key moment that gave the killer away and showcases how investigators pieced together the evidence to bring justice. Packed with suspense and heart-stopping revelations, A KILLER'S MISTAKE explores the fine line between deception and discovery, proving that even the most calculating killers can’t escape the consequences of their actions.

Catching Killers

A true-crime series following police and prosecutors as they work to apprehend and incarcerate some of the world's most violent killers. Each episode features two stories connected by similar murders from around the world.