I'm trying to choose books with little to no gore, and no animals or children being hurt, as far as I can recall.
The Maze Runner series by James Dashner
Bird Box by Josh Malerman was pretty good
Make Room! Make Room! By Harry Harrison
Gone Girl by Gillian Flynn Probably the most psycho mind screwing I've ever read
The Ballad of Black Tom and/or The Devil in Silver by Victor LaValle
The Black Cat by Edgar Allen Poe
Blackwater by Michael McDowell
If having 'black' in the authors name counts, The Wendigo by Algernon Blackwood.
Because his books are usually huge, I'm going with some of Stephen Kings short(er) stories.
UR if you have a Kindle, this one is fun.
Gerald's Game and Misery could also fall under Psycho.
The Girl Who Loved Tom Gordon
The Shining TV miniseries (way better than the movie)
1408, based on the Stephen King short story
Make Room! Make Room! By Harry Harrison (was made into Soylent Green, though the ending is different)