Two mouse brothers, Louie and Dan, leave their overcrowded house in search of a home of their own. Disaster is averted when Louie persuades a black cat not to eat Dan, convincing the feline that a "porcupine" is a terrible meal. The plot is slight and uncomplicated, but Begin's pictures make up for the shortcomings. A snug miniature world is created as much by an illusionist as by a skillful artist. The disparity in size between cat and mouse when they encounter each other in the dark generates real dramatic surprise, in contrast to some blissfully cheerful interior shots.