Overdose of violence and yet ...

Almost 1000 pages of a novel, black, dark, very dark ... I read almost snorkeling, obliged to release to breathe, get me out of this hell, yet irresistibly attracted, but with a sense of malaise, almost voyeuristic. This novel is too much, too violent, too long, too intense, but also curiously too naive, too blue flower ... Already, I expected a scenario to Nikita, but you spend more than half of the novel in hell the jail, to the death, with repetitive scenes of violence, until the overdose ... This part of the novel could have been shortened, as you soon realize that is Marianne, 20, incarcerated Perpet.
His moods of rich girl killer, between two crises amok, fail to touch me. As for his relationship with the beautiful eyes maton "ice blue" (sic!) It makes me much effect a novel Harlequin collection (well, I guess!). I almost throw the towel ...
But finally, the plot bounces with the second part of the novel, more exciting, though still violent. This girl is beaten or beats about once a day, and one wonders how she is still alive. The characters that surround it are not left out, it's almost cartoonish ... violence alternates with scenes of "repentance", seduction a bit unhealthy, feelings exacerbated rather improbable twists and sometimes , reading environment, we say: enough is too much !!
Yet despite all that, this novel distills sometimes unbearable tension, and I could not let go, even if it sometimes made me sick!
To you to get an idea ...