Ever Changing Waters (1998)

Manuel, a teenager from Buenos Aires, accompanies his father, a successful businessman always too busy, to his grandfather's house in the country. The father has some serious problems to solve in the factory he owns there and the boy spends his time with the old man, learns some unpleasant truths about his father's ethics and finally finds out that even his grandad is not what he believed him to be. He finally meets Clara a local girl he establishes a relationship with and who also gives him the opportunity to understand how very few things are stable in life.