The doc catches the horror-rap group, the Insane Clown Posse, just as they as began their meteoric rise to become one of Americas most notorious bands.The doc catches the horror-rap group, the Insane Clown Posse, just as they as began their meteoric rise to become one of Americas most notorious bands.The doc catches the horror-rap group, the Insane Clown Posse, just as they as began their meteoric rise to become one of Americas most notorious bands.