What’s the last book that had a real impact on you?

Specifically looking for fiction, preferably not YA or purely romance. The last few books I've read have been good, but I've been itching for a book that will really stick with me, or otherwise just have a big impact. What's that book that scrambled your brain? Couldn't put down?

I'll read anything but some of my favorites are The Secret History, Jane Eyre, Rebecca, These Violent Delights, The Night Circus, Hamlet, My Dark Vanessa, Wuthering Heights.