'Probably the biggest story in football of the last decade ... Reads like a Cold War thriller.' - Best Football Books of 2019, FourFourTwo

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One anonymous football fan.

18.6 million confidential documents.

The explosive story of the shady underworld of modern football.

In 2016, a whistle-blower known only as 'John' began leaking a treasure trove of top-secret files, revealing the clandestine dealings of clubs, players and agents at the highest levels of international football.

From the eye-popping details of player transfers, to loopholes and opaque tax structures that ensure maximum earnings, this is a tale of rapacious greed and dodgy deals. It is also a gripping story of a fan who wanted to free football from corruption, but finds himself on the run.