Jacques Peretti looks beyond the well-known budgets of schools, hospitals and foreign aid to the range of taxation projects the public know less about.
Peretti finds that local councils across the UK are signing contracts with management consultancy firms who can take a percentage of any savings they find.
He also reveals that hundreds of the millions of taxpayers' pounds spent on these contracts are covered by confidential deals, meaning very little detail is known about them.
In this revealing insight, Peretti asks if the public deserves to know more about how those charged with managing the nation's billions are spending it.