Sahara with Michael Palin (2002)

S3E2 Dead on the Field of Honor

At 35, a man shaped by his refined Southern grandmother's teachings of honor finds himself struggling with misfortune. As his grip on reality slips, he turns to a dueling pistol, seeking to rectify perceived injustices in his personal "field of honor"—Central Park. The peculiar incidents draw the attention of the NYPD, who delve deep into the case as they witness the man's mental decline.