This rather unusual episode towards the end of the Tara season has never been one of my favorites, and is somewhat of an oddity.
Based loosely on Jack the Ripper, the story revolves around the unlikely return of the mysterious Victorian street murderer the 'Gaslight Ghoul' - who has seemingly adopted the said ghoul's alter-ego (& disguise) in order to pick out and murder delegates at a disarmament conference being held in London.
The biggest drawback of the episode is the fact that it is completely studio-bound - this very likely being due to the fact that it was recorded over the Christmas period of 1968, when outdoor conditions would have been challenging.
This gives it a rather cramped feel, and it has the look of an Avengers stage production, rather than a filmed episode.
For those who can stay the course, we do of course get to see 'whodunnit', & a rather fitting fight scene at the climax.
The episode is saved in part too due to the presence of the ever-reliable Nigel Green, who gives a satisfyingly characterful performance.
All in all though, a bit of a disappointment, & an episode only really suitable for completists.
