This document provides a historical overview of physiological thrillers from the 1920s to the 21st century. It summarizes key thriller films from each era that reflected the social and political climates of the time, from Hitchcock's Blackmail in the aftermath of WWI, to Reed's The Third Man during WWII, to Fincher's Seven in the 1990s following the Rwandan genocide. The document uses example films to illustrate how the thriller genre evolved alongside and commented on major world events over the past century.