Karen Black was originally set to play the therapist, but pulled out days before shooting was to begin.
Linnea Quigley said she had to spend hours totally naked in bed sitting on top of an actor simulating sex surrounded by about ten male crew members. She had no idea why they needed that many guys on set staring at her naked body.
Jan-Michael Vincent was cast a day prior to the shooting of the picture. He worked for just two days and supplied his own wardrobe.
Shot in five days.