The book: The Woman in the Window by A.J. Finn
The hook: If you're the kind of person who loves a good twist, then Finn's novel is a must. The instant New York Times bestseller will give you major Hitchcock vibes as it follows an agoraphobic woman who may or may not have witnessed a crime while staring through her neighbour's window. Is she just paranoid, or did she actually spot something awful? Read it before the film adaptation comes out!
Fear factor: This will keep you up far past midnight because you can't put the book down and because you feel a little spooked.