A jaw-dropping account of how one company came to own every poker machine in Tasmania - and the cost to democracy, the public purse and problem gamblers and their families.

The story begins with the toppling of a premier, and ends with David Walsh, the man behind MONA, taking an eccentric stand against pokie machines and the political status quo.

It is a story of broken politics and back-room deals. It shows how giving one company the licence to all the poker machines in the most disadvantaged state in the country has led to several hundred million dollars of profits (mainly...