Verena in Wollust (1982)

Since her divorced father is bossing her around and her boyfriend Jürgen is cheating on her, Verena runs away to Rome to stay with her friend Piera. Piera's brother Giovanni is very interested in her and they soon try each other out, but at a swingers party it turns out that he actually shags anything that moves. When Verena's father arrives in Rome to pick up his daughter, he is distracted by French au pair Beatrice, who is no longer in Giovanni's employ. Back in Germany, one of Verena's new Roman friends comes to visit. Verena shows him around, but when he is invited to a party, he is horrified to discover that the event is an orgy for everyone.