A Noise Downstairs by Linwood Barclay, 368 Pages

This. Book. Was. So. GOOD!! I couldn't put this down, and was not expecting the ending. Barclay is a master at getting into your head and making you question everything, and A Noise Downstairs was no exception.

Paul Davis is recovering from a brutal attack that almost killed him, after he stumbled upon a colleague about to dispose of two bodies. With his colleague now in prison serving a life sentence, Paul is trying to get his life back. He is battling PTSD along with other physical injuries, and begins seeing a therapist. While meeting with her, Paul decides that in order to fully heal, mentally and physically, he needs to dig deeper in the life of his attacker and find out what makes him tick. In an effort to cheer him up, Paul's wife brings home a vintage typewriter. When Paul begins hearing someone typing on the typewriter in the middle of the night, he blames it on everyone- even himself. Unable to find the source of the typing, Paul comes to the conclusion that the typewriter is somehow possessed, which leads to him wife coming to the conclusion that he is losing his mind. Paul is determined to prove that he's not crazy, and takes matters into his own hands.