Rheingold Theatre

I remember watching this when I would have been around 11 or 12. And I still remember how creepy it was. Brilliantly done with just 2 actors, George Coulouris and Patrick Barr. Just in case it is still around somewhere, I won't give details of the plot, but the fact that I remember it so clearly after 50 years must say something! I'd love to get hold of it. I assume I must have also watched other episodes, but I can't remember them. Douglas Fairbanks Junior's team was also behind the film 'Chase a crooked shadow' which is another apparently forgotten gem. That was the first 'grown-up' film I was taken by my parents to see!