What happens when an employee notices that the boss of his company is stealing and decides not to look the other way? What if, faced with the choice between saving his career or his conscience, he chooses the latter? In February 2015, Andrea Franzoso, an internal audit officer at Ferrovie Nord Milano, discovered that the company's president was using public funds for his own interests. The "crazy spending" included virtually everything: porn films, travel, designer clothes, gifts to political friends, and over €180,000 in fines accrued by his son with the company car. Franzoso reported the matter internally but was told to forget it, so he filed a complaint with the police. This triggered an investigation by the Milan prosecutor's office for embezzlement and aggravated fraud: the president was forced to resign and indicted. Andrea Franzoso, meanwhile, was transferred to another office, no longer carrying out any oversight duties. A vacuum formed around him: his colleagues turned their backs on him and isolated him. In the end, he loses his job. This book is the story of that event, and an answer to the question we all ask ourselves: is it worth being honest? A lesson in ethics and courage, but above all a boost of confidence for those who think Italy is a hopeless country. In the fall of 2017, the media coverage of Il disobbediente led to the passage of the first Italian law protecting whistleblowers. As Raffaele Cantone, then president of the National Anti-Corruption Authority, writes in the afterword: "If today I had to identify the 'trigger' factor that set that virtuous circle in motion, I feel I can pinpoint it in this book and the resonance it had. It is undeniable that the human story recounted in these pages, based on nothing but honesty and a sense of duty, was able to make an impact where many legal arguments, although perfectly reasonable, had failed."