Willow is angry and sad a lot but tries to hide it. After a rough day at school, she blows up at her big sister. She runs away to the woods and finds Pilu who has also run away. Pilu is mad at her mother. Willow is also mad that she made a promise to her mother she can't seem to keep. Together they figure out that the angry monsters following them are of their own making. It is a story of acceptance and forgiveness and family. Simply lovely.