Sexual Perversions of a Married Woman (1981)

Cecilia is a haughty aristocrat who likes to humiliate her servants. One day, her life changes completely as she is raped by three of her servants. The experience turns out to be an enjoyable one as it turns Cecilia into sexually liberated woman. She convinces her husband that seeing other people will improve their relationship. But after a while, this erotic life seems to have a downside.