The story is about a small town where pets start to disappear one by one. The residents are puzzled and the police are called in to investigate but can't find any leads. Strange signs start to appear around town with the message "You're next" which causes people to get worried and rumors start to spread. One day, a resident catches a glimpse of a cat named Ollie dragging a small animal into the woods. Ollie is revealed to be the pet killer and is captured and put down. However, Ollie had two brothers, Atticus and Flynn, who share the same blood thirst for hunting and killing and they seek revenge. They target the family of the resident who had caught Ollie and call the police and continue to attack the townspeople. The police are powerless to stop them and the townspeople live in fear. They realize they made a grave mistake in killing Ollie and should have tried to rehabilitate him instead. The town is forever changed by the actions of the killer cats and the townspeople learn that the consequences of their actions can be far-reaching and devastating.