This simple picture book for younger children deals with anxieties about changing family relationships. Ella does not approve of her mother's new partner, Joe, particularly when he moves into their tiny flat and seems to take up all the space. She resists all his efforts to make friends with her and is unhappy at the prospect of moving to a new house where they are to live together as a family - that is until Joe rescues her beloved doll from a neighbour's dog and Ella quickly revises her opinion of him.