Back in the early 1980s, a young Italian man landed in a psychiatric prison for brutally stabbing his mother and father. He escaped only to leave such a gruesome trail of crimes that by the time he was 24, he was dubbed the most wanted man in France, Italy and Switzerland. The chilling story of Roberto Succo has fascinated many, including noted French playwright Bernard-Marie Koltès whose final play, Roberto Zucco, was inspired by his life.