
Ernie and Lars decide to restore the property and auction it to recover their lives. The two discover from the blueprints that the property was the final design of famed architect Charles Lyle LaRue and would be worth a fortune if properly restored. While attempting to sleep, the two are bothered by a mouse and, when investigating him, find blueprints of the house. With nowhere left to go, the two brothers take refuge in a property their father left them, an abandoned mansion on the outskirts of town. Meanwhile, at Ernie's restaurant, the mayor is dining and suffers a fatal heart attack when he accidentally eats a cockroach, getting the restaurant closed down. When Lars refuses a buyout from a cord company called Zeppco, his money-hungry wife April (Vicki Lewis) throws him out. Once-wealthy string magnate Rudolf Smuntz (William Hickey) dies, and he leaves his factory to his two sons, the well-meaning and optimistic Lars (Lee Evans), and venal cynic Ernest "Ernie" (Nathan Lane), who has ignored the family business to become a chef.

The film is set in the late 20th century, though with styles humorously ranging from the 1940s to the 1990s. The film follows two Laurel and Hardy-like brothers in their struggle against one small but crafty house mouse for possession of a mansion which was willed to them by their father. It was the first family film to be released by DreamWorks Pictures, who released it in the United States on December 19, 1997. Mouse Hunt is a 1997 American black comedy slapstick film directed by Gore Verbinski in his directorial debut, written by Adam Rifkin and starring Nathan Lane and Lee Evans, and featured William Hickey, who died shortly after the film was shot.
