Psychologist Since 2008 she has been working therapeutically in a social therapy institution with sexual and violent offenders. Between 2009 and 2013 she worked as a psychological consultant in criminal cases and in public relations for her then husband's company, the criminal biologist
Mark Benecke. Nowadays, she works as an independent criminal psychologist with an office in Cologne in the fields of consulting and education. Her main areas of work are
paraphilias,
personality disorders (including
psychopathy,
antisocial personality disorders, and
borderline personality disorders),
psychological trauma, superstitious beliefs, Mark Benecke commissioned her to write
Aus der Dunkelkammer des Bösen to create a comprehensive psychological profile for the Colombian serial killer
Luis Alfredo Garavito Cubillos. The book was published 2011, and achieved high rankings on the
Spiegel bestseller list. She has been a regular columnist for the German-language BDSM magazine
Schlagzeilen since 2010. In her column "Psychokiste", she deals with various questions on the subject of BDSM from a psychological point of view. In 2013, she published a psychological profile of the historical serial killer and cannibal
Karl Denke. Published in October 2013, her book
Auf dünnem Eis. Die Psychologie des Bösen analyzed the crimes of
Rodney Alcala,
Richard Kuklinski,
Leopold and Loeb, and the
murder of Marta Russo. Using the test methods developed by
Robert D. Hare, the book also discussed what created psychopaths. It entered the Spiegel bestseller list at number 13 in November 2013. Her next book,
Sadisten.Tödliche Liebe – Geschichten aus dem wahren Leben was published on 12 February 2015. It focused on
sadism and detailed the sadistic crimes of
Harry Kendall Thaw,
David Parker Ray,
John Wayne Gacy,
Karol Kot, and the
kidnapping of Colleen Stan, among other incidents. It also achieved a place in the bestseller lists. Her 2018 book
Psychopathinnen.
Die Psychologie des weiblichen Bösen centered on female psychopathy, examining the cases of
Marybeth Tinning,
Aileen Wuornos,
Diane Downs, and the
murder of Sylvia Likens. The book was also a bestseller. ==Volunteer activities==