This is basically the story of the scorpion and the turtle, the scorpion asks the turtle for a ride over a deep river, promising not to sting the turtle in the process, the turtle gives the scorpion a ride but the scorpion stings it anyway with the explanation of 'I'm a scorpion, it's what I do'.
Thus we have Lina Romay playing the scorpion, or rather the mute title role, a vampire in turmoil who seduces everything including the bedpost at one point, executing her sting as the seduced is in the throes of the big 'O' (not Roy Orbison, the other big 'O'). I'll admit she's a favourite of mine and while I wouldn't claim she was robbed of an Oscar for this film she does do some great brooding eye acting along the way and if you look up 'pert' in the dictionary, there should be a photo of her from this film.
The film itself is presented in classy widescreen and it's run of the mill Franco really, some dodgy editing, scenes going on too long and you get the feeling that Franco was never really au fait with the camera, like he'd bought it the morning of the shoot and lost the instruction booklet.
The sex scenes go on too long, drifting into dodgy 70s softcore with more moans'n'groans than the England football team in a penalty shoot-out and this must be the only vampire film to contain no fangs or blood, maybe the budget ran out although where the money went, I'm not sure but it sure didn't go on Lina Romay's wardrobe of a cape, some leather boots, an oversized belt and nothing else.