Wolf is such a minuscule mouse that his mother decides to give him a big name. A slightly chewed piece of sheet music yields "Wolfgang Amadeus Mo," hence W.A. Mouse or Wolf for short. The family mouse hole is just behind the leg of a grand piano played twice a day by an elderly woman.
Wolf loves the music and, to the delight of Mrs. Honeybee and the bemusement of his mother, he becomes the first singing mouse. His special talent even enables him to summon help when Mrs. Honeybee falls and can't get up.
To the Gregg family, hunting is just plain fun. To the girl who lives next door, it's just plain horrible. She tries to be polite. She tries to talk them out of it, but the Greggs only laugh at her.
Then one day the Greggs go too far, and the little girl turns her Magic Finger on them. When she's very, very angry, the little girl's Magic Finger takes over. She really can’t control it, and now it's turned the Greggs into birds! Before they know it, the Greggs are living in a nest, and that's just the beginning of their problems…