Only fifty years ago in New Zealand, methamphetamine was a publicly prescribed drug used as widely as by housewives, shift workers, students, and anybody looking to party. Legal for decades, meth was about to undergo a local re-brand as the most dangerous and destructive drug in the world. Journalist Benedict Collins takes us inside the evolution of methamphetamine in New Zealand and around the world. From ram raids for pseudoephedrine in the early 2000s, to the cooks and gangs straight out of Breaking Bad, a visit to Golden Triangle of meth production in Southeast Asia, a moral panic that seeded a meth-testing scandal, unthinkable crimes and drug-fuelled mania, multimillion-dollar meth busts, and the white-collar users who manage their addictions on the sly - all of which cemented New Zealand's reputation as among the highest meth consumers in the world. Decades on from the criminalisation of meth and despite police and policy crack-downs, wastewater would suggest we are using more than ever. Mad on Meth asks: How did tough on crime become dumb on drugs? What does a solution to pure addiction look like?