Whooee, not appropriate at all. I really enjoyed it but I should have turned it off several times. There was a lot of sexual content and some swearing. The ending chapters had graphic torture scenes.
Why did I keep listening? It was intriguing. Big Brother knows all, if they say 2 plus 2 is 5, it is!
I listened to the version from my local public library and if I can post a link I'll edit this to do so. I think you may have to look it up on your library site.