The shrinking man : an original Gold Medal novel

"A horror melodrama. A young husband, whose growth processes are reversed after exposure to atomic radiation and a deadly insecticide, undergoes many harassing experiences before accepting his fate of shrinking to the infinitesimal."@en
"In Matheson's legendary tale, family man Scott Carey finds himself shrinking, slowly, day-by-day, inch-by-inch. While on vacation, he gets exposed to a radioactive cloud, the cause of this bizarre event. Scott once had an everyday existence as a husband and father, but now his shrinking shows no end in sight. He becomes a national spectacle, something worthy of newspaper headlines. As Carey shrinks smaller and smaller, his family become more and more unreachable giants, and the family cat becomes a predatory menace. In this world of disproportion, which grows more and more perilous with each p."@en