In this erotic film from West Germany, the rich uncle from America is called Peter, and he is actually a rich engineer from Canada. Be that as it may, after 20 years he returns home and falls in love with the scantily clad Kitty, who lives with her sex-hungry "brother." The ever-so-nice Peter invites the two of them to his house in the mountains, but the ungrateful "siblings" are only after his wallet. Quite a lot of substance for the genre.