Absolutely splendid late 70s US hardcore starring the ever reliable, John Leslie in fine form, Constance Money, not a personal favourite but really convincing in this and briefly Jamie Gillis in a suitable vigorous, fantasy sequence. The real star, however, has to be the wondrous, Annette Haven who is perfect in and out of her clothing, in and out of the sex scenes. Unlike some, I found the thriller element more unhelpful than helpful and the naked walking upstairs super to look at but rather pretentious in repetition. But never mind the sex scenes are really well done and never overlong, with utter perfection from Haven. Rumour has it that whilst the cast are all stalwarts, the tech folk were moonlighting from mainstream Hollywood positions. Its hard to shake this thought because apart from my reservations about the thriller aspect, the cinematography, script, performances, editing and lighting are most professional with none of the tedious, boring and repeated shots and multiple comings we normally associate with hardcore. The 'rape' sequence missing from some prints is also effective. Great!