The book comes in a "box". A little girl comes home and finds that her bear is not there. She looks for it at home and decides to go on a quest to look for her bear in her apartment building. The story unfolds here literally as the books folds out. The little girl knocks on the door asking for her bear, when you flip the door over, the inside of the apartment is revealed with all its mystery. Strange happenings inside houses - just like as children, we probably remember imagining what might go on in someone's house.