In the bustling city of Milan, in the year of 1967, a young boy named Santo Russo, originating from the southern region of Calabria, made his way north with his family in search of a brighter future. However, their hopes for a better life were shattered when a tragic misunderstanding led Santo to a prison cell, where he would come to learn the harsh realities of the world. Despite his father's disapproval and contempt, Santo found solace and companionship in his fellow inmates, particularly in his friends Slim and Mario. Together, they formed a bond that would withstand the test of time, leading them down a dark path of crime and corruption. Over the course of 15 tumultuous years, Santo, Slim, and Mario embarked on a criminal spree that would leave a trail of devastation in their wake. From daring robberies to brutal kidnappings, from ruthless murders to illicit heroin trafficking, they operated with precision and cunning, evading capture and building a reputation as untouchable predators in the criminal underworld. As they rose to infamy, Santo's thirst for power and wealth grew insatiable, driving him to commit increasingly audacious crimes that would ultimately seal their fate. The trio's reign of terror would come to an abrupt end, leaving a legacy of bloodshed and betrayal that would haunt the streets of Milan for years to come.