Pretty Girls is a distressing book. I took various breaks while listening because it was really unsettling. There is a lot of violence, torture and talk about rape and other gross things. 
 The main characters are not the most likeable but I still wanted to know what's happening to them. 
 All in all the plot is very depressing and I think the main problem is that it was too long. Some things could've been shorten a lot and the tension would've been better. And the ending was a bit unrealistic / cliche but I still enjoyed it.