I Am Legend (1954)

Matheson executes one of the sharpest perspective shifts in horror fiction. While the narrative tracks Robert Neville's daylight hunts and fortified nights against nocturnal blood-drinkers, the climax completely reorients our moral coordinates. Through the eyes of the emerging vampire society, Neville is not a valiant survivor but a daylight-stalking phantom who murders their sleeping citizens. The terror shifts effortlessly from the infected horde to the realisation that monstrosity is merely a matter of biological majority and collective perception.