Little boy Friedrich does not need a TV, because he likes reading books very much. On his birthday, a masked burglar breaks into the apartment. As Friedrich denies him the key for the cupboard he gets tied up and locked in. And really, the burglar finds a treasure in the bookshelf but no money, but the novel of "Robin Hood". Suddenly, the story comes alive, and a fight for justice takes place in Friedrich's room. Therefore, the burglar does not realize when the police come along ...