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Ten years ago, Quincy Carpenter managed the impossible. She survived that terrible night at Pine Cottage when all her friends died. Journalists immediately dubbed her the "last girl", as Samantha and Lisa had been called before. What unites the girls is that at different times and in different terrible circumstances, the three of them were the only ones who managed to survive, but what distinguishes them is that only Quincy never remembers what happened to her...

Now the girl is living her perfect life in Manhattan - a wonderful boyfriend, a popular blog, a police officer best friend who actually saved her life. Everything is perfect, if you don't forget to take your Xanax, of course.

The idyll is shattered when Samantha appears on her doorstep, eager to make friends. And meanwhile, Lisa is found dead...

The past stops.

The past is no longer just the past. And Quincy still has to find out how she managed to survive and why. But what will this truth cost her?