Fraud.  An investigation about a false prescription originates an inquiry that made the Ministério Público (State Prosecution), Polícia Judiciária (Federal Police) and the Ministério da Saúde (Health Ministry) unite efforts in an unprecedented way. The operation Remédio Santo is the first of several operations which ended a fraud that, in total, made the Portuguese State lose more than 100 millions of euros. This episode has the depositions of the Health Minister back then, as well as PJ's inspectors that, in a very technical and synthetic way, guide us through the highlights of the investigation, which constituted, in itself, an apprenticeship to the Polícia Judiciária. The result is an authentic lesson of how to operate and counteract a type of crime considered new at that time.