I gave this movie a 10 on sex scenes alone. The unrated version is full of steamy love scenes and nudity and there's nothing wrong with that. Tanya Roberts plays Kay, the sister of a patient at a sex clinic owned by a sleazy married couple named Jessica and Scott Callister (played perfectly by Delia Sheppard and Jay Richardson). It seems there's something weird going on at their sex clinic and it involves a powerful drug and some doctors doing bad things to their patients while they are under the influence of the drugs. After Kay's sister commits suicide she joins forces with a handsome insurance investigator and they go undercover (if you know what I mean and I think you do) to solve the sex murder. They manage to fall in love in the process and have wild sex during a thunderstorm.(note to anyone: if you invite a handsome insurance investigator to stay the night at your house then that it a recipe for erotic disaster) This movie is great! It has lesbian sex scenes galore, kinky rough sex, Tanya Roberts and Nick Cassavettes who is now a director. It's backed by a great soundtrack by the lovely Becky Lebeau and the usual kick-butt directing of Jim (I'm in it for the ladies) Wynorsky. Check it out but make sure you get the unrated version.