Presented through a series of journal entries, Ratman’s Notebooks follows an unnamed narrator—a reclusive misfit who finds himself alienated from the world around him. Working a thankless job at a company once owned by his late father and living under the thumb of a domineering mother, he drifts through life unnoticed and unloved. When his mother demands he exterminate a rat infestation, he sets out to do just that, but cannot bring himself to follow through. Instead, he begins to bond with the rats, earning their trust, training them, and ultimately forming a secret society of intelligent companions. As his connection to the human world continues to fray, his relationship with the rats deepens and he begins to see them as agents of vengeance. What begins as a quiet rebellion escalates into a chilling plan for revenge, as the narrator sets out to reclaim power in a world that has made him feel powerless.