This film takes place in Ljubljana, the capital of Slovenia. Matic lives in a large neighborhood of concrete blocks of flats with his mother. As his father is temporarily working in Libya, they live alone. Matics' otherwise monotonous life changes dramatically when he is chosen to feature in a film. At the shooting he meets Milena, a girl his own age whom he begins to like. When the shooting is over, the film company gives him a present, a huge black Newfoundlander. Although his mother is not really pleased about it, Matic brings the dog home. And that is just the beginning of their adventures...

Glavna oseba v filmu je deček Matic z ljubljanskega blokovskega naselja, ki ga ima mama sicer rada, a ima težave sama s seboj in s svojim delom v službi. Maticev oče je namreč službeno v Libiji. Matic ima nasprotnike tudi med vrstniki; v nesreči mu na pomoč priskoči Rok, fant njegovih let, s katerim postaneta najboljša prijatelja. Nenadoma pa se Matičevo življenje spremeni, ko ga filmarji povabijo k sodelovanju za glavno vlogo filma. Z njim naj bi igral Jakob - dresiran pes, ki pa se tako naveže na Matica, da dečku psa ob koncu snemanja kar podarijo. Tedaj pa se začnejo težave: razbita šipa, ugriz, lajanje, pritožbe stanovalcev bloka ... Bo Jakob lahko ostal v bloku? Matičeva mama pod vse večjim pritiskom odda oglas v časopis, da prodaja psa. Matic s prijatelji spretno organizira navidezni nakup psa, resne kupce pa z zvijačo odvrnejo proč.