Episode 16, "The Devil Sells His Soul" looks like one of the better ones, but for most of its length the sound is completely absent, until about 10 minutes from the end (even then, it's barely audible). The mystery surrounds the knife murder of Lord Telford, with the guilty one foiled by a stitch in time orchestrated by Colonel March, who puts the entire cast under hypnosis, while he himself portrays the murder victim! Among the excellent cast are Patrick Barr and Alfred Burke, future villains on THE AVENGERS, as well as Patricia Laffan, best known for playing the title role in 1954's camp classic "Devil Girl from Mars." Arthur Crabtree, with 7 episodes the second most prolific director on the series (Bernard Knowles did 11), was no stranger to the horror/sci fi genres, with 1958's "Fiend Without a Face" and 1959's "Horrors of the Black Museum" two of his most notorious shockers.