In this book crime reporter Norman Lucas, with help of forensic psychiatrist Dr Arthur Hyatt Williams, examines the cases of thirty sex killers including -
* Pauline and Juliet, the teenage lesbians whose bizarre fantasies ended in murder
* Peter Kuerton, the 'Monster of Dusseldorf'
* Sylvestre Matuschka, the Hungarian multiple-killer who found sexual satisfaction amidst the carnage of train crashes
* Gordon Cummins, the 'Ripper of the Blitz'
* Neville Heath, the 'Casanova Killer'