Diary of a Psychopath

Diary of a Psychopath is an American thriller-dark comedy book series written by Stella McDonnell, being published by from TBD 2009 until TBD 2018.

Synopsis
A former model goes down a path of crime after she testified to killing her abusive boyfriend. As a result, she becomes a psychopathic killer out to kill anyone who TBD.

Books

 * 1) Diary of a Psychopath (2009)
 * 2) Diary of a Psychopath: When in Vegas  (2011)

Main

 * Lauren Rose - an insane and calculating former model who becomes a serial killer to TBD.

Supporting

 * Darren Johnson - a prison inmate who Lauren TBD.
 * Betsy Rose - TBD

Antagonists

 * Victoria Morrison - another former model turned psychopath who aims to TBD.
 * Justin Blackheart - Lauren's abusive ex who she murdered, with him appearing mainly in her mind, sometimes manipulating her.

Film adaption
confirmed on Twitter in 2017 that he is developing a film adaption on the first book.

The film is being developed by Paramount Pictures and it's expected to be released on TBD 2020.

On February 14th, 2018, it is revealed that Emma Watson was casted in the role of Lauren. A few weeks later, Zac Efron was confirmed to be Justin Blackheart.