Alex is lost. Destructive habits have cost her a marriage and a journalism career. All she has left is her routine: a morning run until her body aches, then a few hours of forgettable work before the past grabs hold and drags her down. Every day is treading water, every night is drowning. Until she discovers Amy. Just another girl from a nearby tow

You wake in the dark, gagged and bound. A man visits you, feeds you. And tells you that he will kill you - just like all the rest. Abbie Devereaux doesn't know where she is or how she got there. She's so terrified she can barely remember her own name - and she's sure of just one thing: that she will survive this nightmare. But even if she does make it back to the land of the living, Abbie knows that he'll still be out there, looking for her. And next...