Candida Royalle has a juicy starring role here as a high-class prostitute (actually, much more than that) working for the mysterious Frisco man, John Carmichael (Jake Teague, in a gender-neutral role). Wealthy heiress Mabel Carter (an incestuous Marlene Willoughby) has hired them in a plan to get her spoiled son Marc (Jeremy Wyatt) to marry her, allowing her to regain control of the vast inheritance her late husband left in trust for Marc.
Shaun Costello's ability to tell fantastically believable stories ("Pandora's Mirror") is always worth considering, and "Sunny" fits the bill in this oxymoron, based on the desperation of an incestuous and manipulative mother to get what she wants at any cost. The script is well developed, but has some gaps that do not detract from the film's interest. Candida Royalle, better known now, decades later, as a feminist pornography director, is truly fantastic as Sunny, and conveys a morbidity rarely reflected in adult cinema.