A gripping true crime documentary series has viewers across the UK on the edge of their seats, with its latest episode provoking visceral reactions from its audience. Catching a Killer, the series that grants unprecedented access to police murder investigations, has just released a new, harrowing instalment.
What is Catching a Killer and Where Can You Watch It?
The series, which first aired on Channel 4 in 2017, follows real-life police forces as they race against time to solve murders and search for missing people. It offers a raw, behind-the-scenes look at the inner workings of an investigation, often starting from the initial emergency call. The show's formula has proven a huge success, building a dedicated fanbase hungry for its unflinching realism.
For those looking to dive into the series, or catch up on the latest episode, the process is straightforward. All five episodes of Catching a Killer are available to stream online exclusively via Channel 4's on-demand service. This includes the very first episode from 2017 right up to the newest release. The available episodes are:
- The Search for Natalie Hemming
- A Knock at the Door
- A Diary from the Grave
- A Stab in the Dark
- Buried Truths
The Latest Episode: 'Buried Truths' Sends Shockwaves
The most recent episode, titled 'Buried Truths', aired this week (week commencing 10th January 2026) and marks the first new instalment since 2024. This brutal episode focuses on the tragic case of Cumali Turhan, a 45-year-old father who was reported missing after being lured to a bar by a love rival.
The investigation took a grim turn when, following a concerned call about his failure to show up for work, his body was discovered at a landfill site. The police work depicted uncovers what have been described as "horrific truths" surrounding the case.
Fan Reaction: "I Feel Physically Sick"
The intensity of the latest episode has sparked a strong reaction on social media, with viewers describing it as one of the most disturbing things they have seen on television. One fan expressed online, "I've just watched this!!!! OMG I feel physically sick! It's the worst thing I've ever seen."
Another viewer commented on the series' unflinching nature, stating, "I don't usually squirm but that was brutal." A third social media user who caught only the end of the programme remarked, "OMG I only saw the end of the programme this is horrendous...", highlighting the powerful impact of the documentary's content.
With its unique access and raw storytelling, Catching a Killer continues to be a standout in the true crime genre. Fans can stream all episodes, including the shocking 'Buried Truths', directly on Channel 4's platform.