Without why

Rocca investigates the murder of his homeless friend Alberto Molfetta, who was set on fire. During the investigation, a father accuses himself of the crime to cover up for his son, but Rocca, deeming him innocent, discovers the real culprits. Once the case has been resolved, the marshal pays homage to his dead friend by fulfilling his last wish: a concert with Molfetta's voice spread throughout the square.