A contrived plot that had too many plot conveaniances and not enough explination. I gathered that the married couple had been robbed while they slept but we get no scene indicating that. Plus the sex scenes were way too choppy, typical of that era. And I must say, I seldom find the whole swinger couple to be a HUGE plot conveniance. That being said, I actually enjoyed this movie. I'm wishing parts 2 and 3 were posted so I could watch it in it's entirety.