The Rivals of Sherlock Holmes: The Horse of the Invisible. I have not been overly enamoured of this early 70s anthology series, but I really loved this one. The always awesome Donald Pleasance is a ghost-hunting detective brought into a case where a young woman is being terrorised by the family legend of a murderous, supernatural invisible horse. No, really. This one had a great atmosphere as well as the Don on his usual splendid form and I really enjoyed it. Rather disappointed there aren't more with him in it. He should have got his own series.
