Another radio version of "Casting the Runes" by M.R. James. Better than the perfunctory Red Room Ghost Stories version... Not quite as good as the Escape episode.
Interestingly enough the finale mirrors that of the film "Curse of the Demon" in which the demonologist Karswell is also... hit by a train. The film is the best adaptation of this story to date.

The film version is "Curse of the Demon"
 anybody has missed this film, Halloween is just around the corner and that's a good excuse to add it to your collection.
In fact this adaptation is very much a combination of the film and the original story.
I can understand some of the changes but not the almost complete lack of anything to support the supposed stalking of the protagonist by a supernatural force. He says he feels like he's being stalked but it never comes across with any force. Maybe the sound effect used in The Horla was a bit weak but it was better than nothing to suggest the presence of something unseen.
A lot of characters are brought in to help solve the problem.
A psychiatrist... No help there.
An occult scholar... Aha! Single handedly unravels the whole business.
An insider... A character who combines aspects of Karswell's mother and Joanna Harrington from the film version.
A professional makeup expert... Good thinking. Very nice bit of practicality here. 