Garnethill, by Denise MinaDenise Mina’s “Garnethill” isn’t just dark. It’s a black hole that sucks you in and consumes you.

I’ve gone on record saying that I don’t like movies and books that deal extensively with mental illness. For the most part, I think that this is still true; I have no intention of running off to buy “The Bell Jar.” But even though a hefty percentage of this book takes place in a psychiatric hospital and the heroine is forever teetering on the brink of a complete breakdown, I found it really enthralling.

“Garnethill” is the first of a trilogy of books (”Garnethill,” “Exile” and “Resolution”) set in Glasgow. The heroine, Maureen O’Donnell, is a young alcoholic who is mere months out of a psychiatric hospital and is dealing with the aftermath of childhood abuse at the hands of her father. One morning after another bender, she awakes to find her married psychologist boyfriend slaughtered in her apartment. In her efforts to clear herself, she uncovers a series of abuses against mentally ill women in the same hospital in which she herself was confined. More murder and mayhem ensues.

I know, right? The very description makes you want to slit your wrists to get it over with, doesn’t it?

Well, I can’t really explain it, but even though it’s an incredibly dark series, it never gets bogged down beneath the giant weight of its own pathos. I mean, the most sympathetic member of her family is her drug-dealing brother Liam - that should be almost cartoonishly pathetic. Maureen is barely able to cling to the remnants of her own sanity, and her actions consistently made me say, “Oh Maureen, what in God’s name are you doing?” But she does cling on, and her actions are believable given her circumstances.

If you do read “Garnethill,” I’d highly suggest reading the entire trilogy. Even though it seems kind of impossible, “Resolution” does resolve all the plot threads in a satisfying and really unexpected way.

Verdict: 8 out of 10 for the whole trilogy. It won a bunch of literary prizes, and it’s not hard to see why.