It is the end of 1985. Things have changed in Cagliari for some time. The city is plunged into darkness. Now Cagliari is ugly, dirty but above all bad. Fault of drugs, which like a flooded river has invaded the streets.

On the evening of December 23, two bandits, armed and with their faces covered by balaclavas, break into a liquor store, inside there is a man in his sixties, the robbers order the owner to hand over the proceeds. the man does not allow himself to be intimidated and reacts, a scuffle ensues, two shots are fired the owner remains on the ground lifeless What appears to be an easy robbery becomes a crime that shakes the city to its foundations and plunges it definitively into a nightmare from which he will emerge alone twenty years later.

Aldo is an out-of-course university student. One like many in Cagliari. A little undecided. He went from some small and harmless experience with drugs to the usual jobs to put together some money to the awareness of wanting to change his life and get busy to help himself and others. That evening he has the misfortune of being in the wrong place at the wrong time. He lives in the neighborhood where the crime took place. He happens to be passing by while the robbery is taking place. In the following days he is stopped, arrested and placed in solitary confinement in which he will remain for 185 days.

On 2 July 1986, Aldo committed suicide by hanging himself in his cell in the Cagliari Buoncammino prison