#1 NEW YORK TIMES BESTSELLER • From the bestselling, prizewinning author of Say Nothing and Empire of Pain, a spellbinding account of a family devastated by the sudden death of their nineteen-year-old son, only to discover that he had created a secret life which drew him into the dangerous criminal underworld that lies beneath London’s glittering surface

“Another blockbuster feat of reportage. . . . I sprinted through this addictive book in three days and gasped more than once at the true story’s twists and turns.”

—Esquire

A NEW YORK TIMES BEST BOOK OF THE YEAR SO FAR

In the early morning of November 29th, 2019, surveillance cameras at the headquarters of MI6, Britain’s spy agency, captured video of a young man pacing back and forth on a high balcony of Riverwalk, a luxury tower on the bank of the river Thames. At 2:24 a.m., he jumped into the river.