McKinsey earns billions advising almost every major corporation as well as countless governments, including Britain's, the USA's and China's. It boasts of its ability to maximize efficiency while making the world a better place. Its millionaire partners and network of alumni go on to top jobs in the world's most powerful organizations. And yet, shielded by non-disclosure agreements, its work remains largely secret - until now.

In this propulsive investigation, two prize-winning journalists reveal the reality. McKinsey's work includes ruthless cost-cutting in the NHS, incentivizing the prescription of opioids and executing Trump's immigration policies (the ones that put children in cages). Meanwhile its vast profits derive from a client roster that has included the coal and tobacco industries, as well as some of the world's most unsavoury despots.

McKinsey proudly insists it is a values-led organization. When McKinsey Comes to Town is a parable of values betrayed: a devastating portrait of a firm whose work has often made the world more unequal, more corrupt and more dangerous.