The Woman in the Window by A. J. Finn

For the past ten months, Dr. Anna Fox has been trapped inside her New York City home, completely isolated from the outside world. Her crippling agoraphobia leaves her unable to even step out onto her front stoop without fear and anxiety overwhelming her mind. So she spends her days drinking, watching old movies, and spying on her neighbors.

Then the Russells move in. From Anna's view across the street, they seem like a perfect family. Until Anna, gazing out her window one night, sees something she shouldn't have.

Woman in the Window is a twisty page-turner that leaves you constantly guessing about what's real. With frequent golden-age Hollywood references, this is a perfect book for fans of classic films like Rear Window and Gaslight.