Dark Heart: A True Story of Sex, Manipulation, and Murder

Was murder part of the game?



Seventeen-year-old Kat McDonough grew up with theater in her blood-and a penchant for make-believe. More than a decade older, Seth Mazzaglia was well known in the community theater circle of Portsmouth, New Hampshire. He, too, had a rich inner life-and he soon had Kat convinced that they were soul mates.



To intensify their bond, Seth lured Kat into a world of violent sex and role-playing, where she was his slave. But even that wasn't enough to satisfy his raveno...