This is a chilling, very realistic book by the collaborative voice of two journalists under the pseudonym Nicci French.
Abbie Devereaux wakes up somewhere in the dark, wrists tied, ankles tied, gagged and blinded with a sack. She can't remember the past week. Her kidnapper tells her he's going to kill her, that he's killed other woman just like her, and there's nothing she can do about it. She is going to die. In desperation, Abbie tries to hang herself with the ropes she's tied to, and breaks them instead. She escapes. But once in the real world, she's still not safe. For one, nobody believes she was kidnapped, and no one can find her kidnapper. For two, everything about the life she remembers has changed: her boyfriend is now her ex, she's living somewhere else, she quit her job, her personality was changed entirely...This is all worsened by evidence that she's actually loosing her mind.
The great thing about this book is that Abbie is so ordinary and instinctive that everything she feels or does makes complete sense. You become Abbie. And so you feel her doubt: what happened was real, wasn't it? She's not crazy, is she? With a creepy aura of deja vu, Abbie finds herself retracing her exact steps from the week before her amnesia, and she struggles to understand - who was she? why did she change? who is she now? The more she learns, the less anyone believes her. The less she believes herself. The more she knows the trail has to end, somewhere.
This is the kind of book you can't get out of your head even weeks after you'd finished reading it. Abbie is a vulnerable but internally strong character I empathized with right away. The story is edgy without being horrifying, filled with a sense of doom, inevitability, and grim determination - the ending is climatic and shocking, but fully satisfying as well.
Downside: there was none, as far as I can remember. Abbie's steamy but short romance with Ben is the only reason I didn't give this five stars, and that's my personal preference for modesty.