Some time ago, I read I Am Legend (the actual name of the novel; both movies are based on it) and while I wasn’t much interested in delving further into his oeuvre, this was in a four book collection of mid-fifties science fiction from the Library of America, so I read it.
And it ain’t bad.
Scott Carey is shrinking inexorably by approximately 1/7 of an inch a day. The narrative runs on two parallel tracks. First, when he is one inch tall (seven days to live!) and being stalked by a black widow spider in the basement in which he is trapped. This tales alternate with him shrinking over time and watching his life and family fall apart under it all. The tales converge when the second timeline reaches when he gets trapped in the cellar.
Half of it is exciting, survival fiction in what is, effectively, an alien environment. The other half is more thinking person’s sci fi, about the personal implications (finances; becoming shorter than one’s daughter; ceasing to be sexually attractive to one’s wife; being mistaken for a child by bullies).