This book was featured in the last episode (it was on one of the shelves at the Brew when Aria is searching for the report), I hadn’t seen anyone else point it out so I searched the synopsis of the book and I found some serious parallels to what is currently happening in PLL:

In this chilling, brilliantly plotted new thriller, Daniel Palmer explores the terrifying aftermath of a good man’s bad decision, the flip side of identity theft, and the lengths some will go to save a life—or destroy one…
The future has never looked brighter for Boston couple John Bodine and Ruby Dawes. John’s online gaming business is growing, Ruby is pursuing her dream career, and they’re talking about starting a family.
Then Ruby receives a life-changing diagnosis, and their cut-rate insurance won’t cover the treatment she desperately needs. Faced with a ticking clock, John makes a risky move: he steals a customer’s identity and files a false claim for Ruby’s medication.
The plan works perfectly—until the customer in question contacts John with a startling proposition. If John and Ruby agree to play a little game he’s devised, he won’t report their fraud. The rules of ‘Criminal’ are simple: commit real crimes. Fail in their assigned tasks, and there will be deadly consequences.
John assumes it’s a sick joke, until people start dying. With each round, the stakes are escalating, the crimes getting more twisted. John and Ruby can’t disappear—and they can’t go to the police. Their only option is to keep playing, all the while trying to outwit a psychopath who has no intention of letting them leave this game alive…

Something stood out to me which was the man whose identity had been stolen was the one forcing the couple to play the game. If it parallels PLL, does it mean A.D. is trying to get their identity back/had theirs stolen? This would work if there was a set of twins where one person was pretending to be the other for e.g with Alison we see not being Ali/Real Ali being A.D. What do you guys think?

I haven’t read this book and I couldn’t find the summary of all of the events of the book but if any of you can or know because you have read the book could you let me know please.