Initial ideas for thriller

Psychological thrillers interest me and I'm thinking that I would quite like to explore this subgenre. The characters, plots and locations are less predictable. For example The Stepfather is in someone’s house, yet in Shutter Island it is covered over a whole island. Therefore there’s a whole range of locations.  
What do they have in common?

•  Someone struggling with reality.     
•  Messing with the mind.
•  Character-driven.