Edmond Dantés's life and plans to marry the beautiful Mercedes are shattered when his best friend, Fernand, deceives him. After spending 13 miserable years in prison, Dantés escapes with the help of a fellow inmate and plots his revenge, cleverly insinuating himself into the French nobility.
During the run of a particularly awful interpretation of Richard III, the star, Anthony O'Malley, begins to frequent a rough pub to develop his character. He meets Barreller who he discovers owes someone he's never met a considerable sum of money. Seeing an opportunity to make some fast money, O'Malley convinces hapless extra, Tom, to meet Barreller as the debt collector.
After a night of drinking Guiness at the local watering hole, an ordinary, working-class, family man in Dublin's life is turned upside-down when he wakes up as a rat.
