Module 8 shows what happens in Spain when someone ends up in jail, also what goes on when they leave it behind. We share the day to day existence of the prisoners at a penitentiary center in Mansilla de Las Mulas (León), where the authorities had started to apply a new system of reinsertion which is turning upside down the penitentiary world. Module 8 raises a question we often times avoid: What are jails good for?