The raunchy 80s adaptation of smash hit novel A Woman of Substance drew the highest ratings Channel 4 has ever seen. As the broadcaster goes there again, the cast and creators talk feminism, revenge – and sex caves

Somewhere on the West Yorkshire moors is what the team behind A Woman of Substance nicknamed “the sex cave”. It is here that the heroine, Emma Harte, loses her virginity in the lavish new adaptation of Barbara Taylor Bradford’s bonkbuster. “It’s hidden away and beautiful,” says the showrunner, Katherine Jakeways. “The lighting in there almost looks like AI, but it’s real. Weirdly, it’s about a mile from my mother-in-law’s house. I haven’t told her yet that it’s a sex cave!”

This is just one of many unusual sites for sex scenes featured in the show. “Oh my God, I know,” laughs Jessica Reynolds, who plays the young Emma. “Not just the cave, but there’s a little love shack, too. The cave is the most stunning location, with sunlight coming through these arching rocks. I wonder if they used it in Wuthering Heights, too? If they didn’t, they should have.”

Remember the iPod? How about the Pippin? In the half-century since it launched its first PC, Apple has given us some amazing innovations. We round up its biggest triumphs and flops

Fifty years after Steve Jobs, Steve Wozniak and Ronald Wayne founded the company in Jobs’ parents’ garage in Los Altos, California, Apple has become a behemoth, and billions of us use its products every day. From the first successful home computers with colour screens, to the iPod, to the smartphone that set the template for the modern mobile era, the company has repeatedly reset consumer expectations.

As a result, the firm occupies a central position in the tech world, initiating trends and popularising products. Here are five of its most influential products from the past half-century – alongside some unusually big misses.

Oil markets have had some of the steepest price rises ever recorded as conflict in the Middle East escalated over the last week. Although the world is slowly becoming greener, fossil fuels are still the lifeblood of every economy so when oil and gas prices rise, the effect ripples through almost every aspect of our financial lives. Jillian Ambrose, energy correspondent for the Guardian, explains how the conflict may affect global costs.

• Oil prices ‘could breach $100 a barrel within days’ amid supply disruption from Iran war

Psychologist Leanne ten Brinke has spent decades studying toxic personality traits. What are the red flags to look out for among workmates, politicians and potential partners?

Coming face to face with a probable psychopath was enough to make Dr Leanne ten Brinke rethink her career choices. Early in her 20s, while studying forensic psychology in Halifax, in the Canadian province of Nova Scotia, Ten Brinke was volunteering at a parole office, which would hold weekly group meetings for released sex offenders. “Most of the men showed contrition,” says Ten Brinke. “They really seemed to recognise the damage that they had done.” Except for one. The treatment programme seemed “like a game to him”, she says. One week, in a discussion about the impact their crimes had on victims, this rapist stared at Ten Brinke and, smiling slightly, started to say how much his victim looked like her, “and how I was ‘his type’. Clearly he was trying to scare me, and he did.”

It put her off a career working with convicted criminals, but she remained fascinated with “dark personalities” – psychopathy, mainly, but also narcissism, machiavellianism (manipulating and exploiting others) and sadism. From politics to business to the media, it wasn’t as if there was a shortage of people to study. There were selfish, callous, impulsive and manipulative people everywhere, often presenting as gregarious and charming. “It started to occur to me that these traits aren’t just confined to an underworld. These traits appear in all aspects of our lives,” she says.

If anyone can convince politicians and public of the need to pay for a national care service, it’s Louise Casey. With her involved, I now have hope

No government in my lifetime has been dealt a worse hand than Keir Starmer’s. Austerity-broken public services, an empty Treasury, a jittery bond market freaked out by Liz Truss and then stricken by the arrival of Trump 2.0 with his bully-tariffs. Now Britain’s ally is setting the Middle East on fire in a murderous war, exploding oil and gas prices. This needs repeating regularly, lest anyone forgets the obstacles blocking this government’s best intentions for change.

One of those good intentions in the Labour manifesto was the creation of a national care service. Louise Casey, respected troubleshooter, was given a commission to review adult social care and solve its impossible dilemmas. She showed her thinking in a blistering speech last week.

Polly Toynbee is a Guardian columnist

Guardian Newsroom: Can Labour come back from the brink? On Thursday 30 April, ahead of May elections, join Gaby Hinsliff, Zoe Williams, Polly Toynbee and Rafael Behr as they discuss the threat to Labour from the Greens and Reform – and whether Keir Starmer can survive as leader. Book tickets here or at guardian.live

When Trump granted white South Africans refugee status, he was echoing a falsehood about Black people taking revenge for years of brutality. But no one flourishes in a repressive police state

There’s a little town in the scrub in South Africa – a full day’s drive from the country’s big cities – that has become perhaps the most scrutinised place on earth, given its size. It is 9 sq km (3.5 sq miles) of suburban-style houses harbouring about 3,000 people, with a main drag, a municipal swimming pool, one gas station and some pecan farms. Nothing of consequence ever really happens there, a fact the townspeople take as a point of pride. And yet over the past three decades, dozens of English-language news outlets have made a pilgrimage to it, often more than once. The New York Times alone has run four dedicated profiles. The essays have kept pace year after year, quoting the same people over and over, even as nothing of note occurred. There’s been no war, no disaster.

That changelessness is the point. No people of colour are allowed to live in the town, called Orania. The name is a nod to the river that runs nearby – and to the Orange Free State, the apartheid-era designation for the province in which it lies. Orania’s founders established it in 1991, the year after South Africa’s best-known Black liberation leader (and future president), Nelson Mandela, was freed following 27 years in prison.

The US defence secretary says the US is increasing attacks on Iran and is focused on reducing the country’s military capability

• Oil prices drop sharply after Trump moves to reassure markets

• Trump says Iran war is ‘very complete, pretty much’ as economic toll rises

• How have you been affected by the latest Middle East events?

Investor hopes for a swift resolution to the Middle East conflict propelled Australian shares higher today, with the benchmark S&P/ASX 200 finishing the day up 1.1% and recovering about $35bn in value after yesterday’s $90bn plunge.

Oil prices surged to a four-year high early in the week before coming back down below $US90 a barrel after Donald Trump suggested the Iran conflict would end soon, sending global stock markets higher.

After oil prices surged on Monday the US president sought – and failed – to offer a clear vision for when the largest US intervention in the Middle East in years will end

• Middle East crisis – live updates

At one of the most consequential moments of his two terms in office, wartime president Donald Trump on Monday delivered a vague and contradictory forecast for how long the United States will continue to fight in Iran and what the ultimate goal of the US military campaign there will be.

With oil hovering above $100 a barrel for much of Monday and Middle Eastern allies fearing a further tumble into regional conflict, Trump appeared in Doral, Florida with the mission of calming global markets and reassuring skittish allies that he has a clear vision for how to end the largest US intervention in the Middle East since the Iraq war.

As speculation mounts that Kim Jong-un and Trump could meet this month, analysts say Pyongyang will continue to see nuclear weapons as a matter of survival

• Middle East crisis – live updates

North Korea’s launch last week of a missile from a naval destroyer elicited an uncharacteristically prosaic analysis from the country’s leader, Kim Jong-un. The launch was proof, he said, that arming ships with nuclear weapons was “making satisfactory progress”.

But the test, and Kim’s mildly upbeat appraisal, were designed to reverberate well beyond the deck of the 5,000-tonne destroyer-class vessel the Choe Hyon – the biggest warship in the North Korean fleet.

Trump has blamed Iran for the mass killing at Shajareh Tayyebeh primary school but geolocation, videos and satellite imagery indicate otherwise

The bombing of a primary school in Minab on 28 February killed scores of people, most of them seven- to 12-year-old girls. The strike is the worst mass killing of the US and Israel’s war on Iran so far – and has been described by Unesco as a “grave violation” of international law.

On Saturday, the US president, Donald Trump, declared that Iran was responsible for the school bombing. “In my opinion, based on what I’ve seen, that was done by Iran … they’re very inaccurate, as you know, with their munitions. They have no accuracy whatsoever. It was done by Iran.”