8-year old Oskar lives in a family-run children's home. Every day he escapes to the world of his own imagination. His idol is the hero of a tv series, Detective Bruno. On the day of his birthday, the boy receives a treasure-hunt clue left behind by his late parents. Oskar decides to hire Detective Bruno, his favourite TV series character, to solve the quest. Real-life Bruno, the worn- out actor in PR crisis, decides to use Oscar to rebuild his image. They embark on an urban adventure through Warsaw. The journey makes Bruno change his ways and helps Oskar cope with the loss of his parents.