Before Charles Manson, there was Tony Costa-the serial killer of Cape Cod 1969: The hippie scene is vibrant in Provincetown, Massachusetts. Long-haired teenagers roam the streets, strumming guitars and preaching about peace and love... and Tony Costa is at the center of it all. To a certain group of smitten young women, he is known as Sire-the leader of their counter-culture movement, the charming man who speaks eloquently...