His name is Tobias, but hardly anyone calls this eight-year-old by anything except his strange nickname: Zaziki. And why do they call him Zaziki? For the simple reason that he's always dreaming of Greece. Zaziki lives with his mother, Tina. He has never seen his father, a Greek fisherman, who doesn't even know he has a son in Sweden. Zaziki would give anything to visit his father and dive with him to catch squid. In the evenings, he even practices holding his breath for as long as he can. One day, Zaziki meets a young policeman, who has recently been transferred to Stockholm. He is looking for an apartment and, since there's a spare room at Tina and Zaziki's place, he moves in as a subtenant...