Lives change for members of an Irish family after a meteor crashes in their backyard. The kids believe that it was sent down to them by their dead parents, but the government hauls the rock away and sends it to the local university.

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.

Curly Mulligan is the pupil who brings the headmaster a full fry-up every morning. When the head finds a hair in his breakfast, all hell breaks loose.