十年夫妻共枕眠，我們擁有一個可愛的女兒、一隻狗、一棟房子。 但，妳究竟是誰？ 摯愛的妻子重病，撰寫訃聞為生的丈夫只能以他最擅長的方式─書寫─來安頓自己。然而，隨著書寫而來的事實查核，卻讓他如墜五里霧中……沒有任何一份文件可以核實妻子的身份，甚至，連她的名字，都是假的！ I have held you at night for ten years and I didn't even know your name. We have a child together. A dog, a house. Who are you? Emma loves her husband Leo and their young daughter Ruby: she’d do anything for them. But almost everything she's told them about herself is a lie. And she might just have got away with it, if it weren’t for her husband’s job. Leo is an obituary writer; Emma a well-known marine biologist. When she suffers a serious illness, Leo copes by doing what he knows best – researching and writing about his wife’s life. But as he starts to unravel the truth, he discovers the woman he loves doesn’t really exist. Even her name isn’t real. When the very darkest moments of Emma’s past finally emerge, she must somehow prove to Leo that she really is the woman he always thought she was . . . But first, she must tell him about the other love of her life.