Super Short Summary

In I Am Legend by Richard Matheson, Robert Neville is the last human man in a post-apocalyptic world where a contagious disease causes people to behave like vampires. He fortifies his home, hunts the infected, and conducts scientific research to understand the disease. His life becomes a solitary struggle until he encounters a woman named Ruth, leading to unexpected revelations. The book depicts death by suicide, as well as mentions of suicidal ideation and sexual assault throughout the novel.