Looking for a film
I saw part of a film when I was around 13 late on tv one night and it has stayed with me ever since. I always thought the film was The Devil Rides Out and so was delighted to have found a copy as I really want see it again, however after watching Devil Rides Out it is clear that this isn't the film I saw all those years ago.
I would be greatful if anyone could help me in finding out what that film was, here's what I know of it:
It was from either the 60's or early 70's and the plot followed a couple (or maybe even two couples) who stumble upon a devil worshipping ritual and are then stalked by these devil worshippers.
I'm not sure if Christopher Lee was in the film or not but I do remember one scene in particular when the couple/s on the run are by a crowded swimming pool and suddenly realise that some of these devil worshippers are in amongst the crowd as everywhere they look these people are starring at them.
Sorry I can't give any more information, I would be greatful for any help in finding out the name of this film as I'd love to see it again.
Thanks