Read Along with Oprah
I picked up Frey's A Million Little Pieces at Target and have been reading it quickly. While it's not a scared straight book, it does have it's fair share of horror. Early in the book, Frey has extensive dental work, including a double root canal, done with NO ANAESTHESIA. (Because his addiction to substances is so strong there's no way the dentist can give him novacaine.) Later, when he tries to leave the facility to go and get high, another patient asks him, if you can stand a double root canal with no painkillers, then why can't you stay in the facility long enough to complete the program?
However, one does get the impression that a certain amount of the book is fiction. One or two of the characters seems at least partly fabricated, IMHO.