Very interesting and disturbing novel about two kindred spirits, society pariahs that found strength in each other - unfortunately not to do good things but to engage in horrible wave of murders that span decades.

Albert and Solange, former orphaned and latter de-facto orphan even with her mother still alive, will create a very strong bond. Their goal is to build a family, create something of their lives but very soon it will become obvious that they are much more damaged than even they thought possible - they complement each other and they are in balance, but that balance comes with the price. One acts very destructively while other tries to hide their tracks and ensure they are out of danger after the bloody murders. I have to say that 'til the end I was not quite sure who did what but ending was really a twist.

It is not story of one using the other - they are like two damaged persons, fulfilling each other, but due to their rather traumatic experiences they act on instinct, and they do not allow others to enforce themselves on them (due to their ... I guess you might say socially strange behavior they are haunted by a very specific type of person). In their deranged state they take care of each other and they even build a very successful business, they travel, for all means and purposes enjoy their life (or at least try) but they are marked, one might say with the mark of Kane, that constantly brings more and more asocial and brutal creatures to their door and only way they can deal with them is to kill them. They are like eponymous black butterflies drawn to the light that burns them (although I think these are moths, but all right, I guess some poetic freedom needs to be given here).

Very disturbing story of two psychopaths that under different situations (better and happier childhood) might have been very successful in life.

Book is not that big (around 200 pages) and it is written in a very readable style - I did not find any excess of words or parts of the story that is not supposed to be there (in other words, there are no meaningless fillers). Story spans decades and it is told from Albert's (like 3/4 of the book) and Solange's point of view (1/4 of book). Author manages to present very vividly their own view of the world and events, and reader even develops a bond with these antiheroes, although it is very clear that this weird pair could never be part of the normal world (or better said, the majority of population, because actions of some of these "normal" people are everything but).

Twist at the end though, puts this book into "Sixth Sense" category meaning a lot of time needs to pass before re-read is possible.

Interesting, very haunting crime thriller.

Highly recommended to fans of thriller and crime genre. ( )