One of the inhabitants of the quiet provincial town of Castle Rock is the good-natured St. Bernard Cudjo . One day, while chasing a rabbit, he drives it into a small cave, where he gets a bat bite. At first glance, an innocuous incident turns into a real tragedy . And Kujo returns to the owners of a completely different monster that sows death. The number of his victims is constantly increasing. Dealing with it seems impossible. And the thought involuntarily arises: what really disease can turn an animal into a real monster?And can this Evil be eradicated once and for all? .