In the skin of a narcissistic pervert

Actually, I would like to apologize for my English. I passed my Cambridge certificates and Royal Society examinations 40 years ago, and my command of your splendid language may have grown rusty. 
If you are a narcissistic pervert, move on, you should not read this book which was not written for you. First thing, you might not understand it, or you could consider it, as badly written, or poorly translated or whatsoever.
I must confess that this is a novel, and I wanted not to broach this subject from a psychological point of view. If you want this kind of books, you will find many authors who wrote about it.
All I talk about relies upon true facts, even the woman who died in this book is in connection with a real dramatic situation, this poor woman experienced once. The man who committed this murder, was sent to jail for years.

 A man talks about his difficult relationship with his parents and in particular with his mother, who was used to beating him, vilifying him, humiliating him. With no obvious motivations, he will jump from the balcony and will remain for three days in a deep coma.