Down-on-their luck brothers, Lars and Ernie Smuntz, aren't happy with the crumbling old mansion they inherit... until they discover the estate is worth millions. Before they can cash in, they have to rid the house of its single, stubborn occupant—a tiny and tenacious mouse.

Tommy Fawkes wants to be a successful comedian. After his Las Vegas debut is a failure, he returns to Blackpool where his father—also a comedian—started, and where he spent the summers of his childhood.