30 years old but still working those good old Hammer series. This is one of the better ones. It has suspense in it and it has blood in it. remember that it was made for television and not for cinema so gore wasn't allowed but still here we have an example how horror must be done. The camera mostly uses wide lenses and zooms in closely what is given a special effect of the face. Mostly shots are also made from below the face what makes it again a bit spooky. But what works most of all is the use of back-flashes. First you almost see nothing but from then on the woman is seeing more and more until everything is solved we think but it is never explained who the guy with the fingernail is and what his purpose is. still, for the time being it is creepy as stated before, remember that it was for television. Worth watching if you like Invasion Of The Body Snatchers.