TV tonight: inside the dark world of cyber sex crime

Presenter James Blake finds there is a policing war raging online. Plus: a cold case gets a breakthrough. Here’s what to watch this evening. 10.40pm, BBC One. After the identity of the social media influencer James Blake was stolen and used in scams, he made a documentary about it – last year’s Hunting the Catfish Crime Gang. So he is well placed to tackle another investigation, this time into how cyber sex crime has become an online policing war. But as he speaks to young people and experts, and travels across the globe in pursuit of answers, he is shocked to find that the “sextortion” picture is even darker than he imagined. Hollie Richardson.

8pm, Channel 4. It’s the final visit to the Amsterdam clinic that forces clients to literally face their fears. Chloe has emetophobia (a phobia about vomit), which causes problems with caring for her three daughters. It will be interesting – and possibly absolutely disgusting – to see how she is made to overcome this. HR.

9pm, ITV1. For decades, it looked as if the 1981 murder of the shop owner Carol Morgan would remain unsolved. But a cold-case investigation, launched in 2018, brought crucial testimony to light. The concluding part of this behind-the-scenes series begins with detectives interviewing a new witness and contemplating a day in court. Graeme Virtue.

9pm, Channel 5. Perched on a cliff on the Isle of Wight is the home of Gav, Lucy and their son, Bo. They live a simple but rewarding life, with breathtaking views of the sea. Ben Fogle heads there to help them care for goats, shovel mulch and make the most of that panorama. HR.

9pm, Sky Atlantic. There is something disturbingly knockabout in the tone of this chronicle of fascism’s rise in 1920s Europe, directed by Joe Wright (Darkest Hour, Atonement). Maybe that is the point? In this episode, Italy’s king reacts to protests over the cost of living by excluding the socialist party from government, creating a golden opportunity for Mussolini. Ellen E Jones.

9.45pm, BBC Two. The comedy survival show continues to be a more low-key – but far funnier – version of Netflix’s Celebrity Bear Hunt (although the host doesn’t pounce on guests here). This week, Maisie Adam, Fatiha El-Ghorri, Darren Harriott, Jessica Hynes, Phil Wang and Joe Wilkinson tackle a knotty problem: knots. Alexi Duggins.

The Battle for Laikipia (Daphne Matziaraki and Peter Murimi, 2024), 10pm, BBC Four. Daphne Matziaraki’s and Peter Murimi’s affecting documentary tells the story of a seemingly intractable land dispute in Kenya. As a drought persists, pastoralist tribes who migrate with their cattle across the Laikipia plateau come into conflict with commercial ranchers and wildlife reserve owners over grazing rights. The colonial history of land appropriation is the backdrop to increasingly entrenched attitudes, but a focus on individual farmers provides a valuable personal dimension. Simon Wardell.