The illiterates who translated the title for Tip Top also did the credits on the boxcover and credit Roxanne Hall as Penelope even though she is clearly credited as Roxanne Hall in the film. Why is it so difficult for these people to get the credits right in these circumstances?
Roxanne, looking very young, is the niece of Beatrice Poggi who employs a young man (Hakan Serbes credited as Hakan Ziegfield) to give her music lessons. Both Roxanne and Beatrice seduce the music teacher and Beatrice also has sex with an older man (Roberto Malone), who seems to wish to marry her, and with the butler (Julian St. Croix). Roxanne and Beatrice compete for Hakan but eventually Roxanne decides to share. This results in a threesome which becomes a foursome when the butler joins in, including partner swapping and DP For Roxanne.
Possibly this film has also been released under the title Penelope.