In the early hours of 14 June 2017, the London sky was ignited. What started as a spark from a faulty fridge soon became the blaze that claimed the lives of 72 men, women and children. It was, however, a perfect storm of negligence, incompetence and greed that made it the worst UK residential fire since the Blitz.

Grenfell: Uncovered reveals a bleak world – a world where the protection of law and justice has been surgically removed and ordinary citizens are left exposed to the cold machinery of disinterested government and corporate balance sheets.

“Feel free to ask me as many questions as you like, but I could respectfully remind you that you did promise we’d be away this morning,” says the former cabinet secretary Lord Pickles, who allowed the fatal cladding to be installed, growing impatient during day two of his questioning at the Grenfell inquiry.

He was, of course, heartbroken by the “96” fatalities – only, he seemed to confuse the number of dead with another great tragedy of the ‘hoi polloi’ – the Hillsborough disaster. Unashamed and seemingly unredeemable, the documentary shows with breathtaking clarity the moral bankruptcy of the bigwigs.

The survivors’ powerful tales provide gut-wrenching sequences which are spliced with the horrifying footage of the 23-storey blaze. We are swung from deep sorrow to exasperated, spitting fury. The cladding companies come across as heartless – all blaming each other.

Grenfell is a terrible indictment of David Cameron’s deregulation drive – a populist ‘cut red tape’ sop to the right in his collapsing party. While the former prime minister proudly expounds his ‘one in, two out’ policy on drafting regulation, France and other European countries place an outright ban on aluminium cladding. The raison d’être of regulation is neatly summed up in the response of a cladding company’s technical manager to a disastrous lab test of their deficient cladding: “Oops.”

This film is a must-watch. It’s visceral, it’s infuriating, it’s heart-wrenching. Closing the distance between the terrifying fire and the cold light of the inquiry, one feels irreversibly placed in the shoes of those demanding justice. From the Gomes family to Omar Alhaj Ali, each harrowing story compounds the anger and misery. Perhaps the film flits around too often, a product of its runtime, but its hard to fault given the volume of detail delivered in under two hours.

The documentary exposes a different side of our society: one with a chilling lack of accountability for those in power, one subject to the mercy of international corporations – and one which we should all be concerned about.

Grenfell: Uncovered is now streaming on Netflix.