Ok Now Im the first guy here, can the second guy explain the movie to me

I didnt really understand but i dont regret having seen this movie, because the acting is terrific ( esp Hans, Nina, Miquelet, minor characters too ) and i had a rough idea what was happening.

But there is so much left unnanswered. Anybody smarter than me who sees and figures out this movie, can you give your explanations ?

even monkeys fall from trees