When Jan decides to marry his girl-friend Sara, he is not aware of his opponent: her father, who is an Italian patriarch. Antonio won't hear of a wedding anywhere else than in Campobello, ...
The child-duo Rico and Oskar, one of them is quite more sluggish, but precisely because of fantasy and own world view; the other one is a smart whiz, but scared for life.
Amateur sleuths Rico and Oskar deal with thieves of a valuable stone.