The Last Man on Earth. Poster of the 1964 movie and cover of the 1954 book, I Am Legend
VS3
I Am Legend
Richard Matheson, 1954
movie vs book
Ubaldo Ragona, Sidney Salkow, 1964

It is 1968, and Dr. Robert Morgan lives in a world where everyone else has been infected by a plague that has turned them into undead, vampiric creatures that cannot stand sunlight, fear mirrors, and are repelled by garlic. Every day Morgan carries out the same routine: he wakes up, marks another day on the calendar, gathers his weapons, and then goes hunting for vampires, killing as many as he can.