Christine wakes up every morning with an unfamiliar man. She looks in the mirror and sees an unfamiliar, middle-aged face. And every morning, the man she wakes up to must explain that he is Ben, he… read more at Kobo.
The Wind-Up Bird Chronicle. Another one of my favorite books. Murakami's books are like your dreams, while you're in them they totally make sense, but if you try to explain them to someone else they just look at you confused.