A Taste For Submission (1991)

There's many a tortuous turn to the devious mind of Mistress Tanya, an inventive dominatrix who caters to the bizarre whims of a roster of scrumptiously submissive clients. When her prize slave Lisa come to spend a weekend of sensual domination at Tanya's well-equipped dungeon, little does she know what surprise awaits her, beginning with the unexpected arrival of her worst enemy, Cynthia, who witnesses Lisa's humiliation.