A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.

Lou (Burt Lancaster), a small time gangster who thinks he used to be something big, meets and falls for a sexy casino employee named Sally (Susan Sarandon). She needs his help realizing her dream of going to Monte Carlo, a symbol of the glamorous life that she has been looking for so desperately.