Vydáno: Dec 27, 1974
Runtime: 70 minut
Žánr: Mysteriózní, Televizní film
Hvězdy: Edward Fox, Elaine Taylor, Christopher Cazenove, Jeremy Clyde, John Westbrook, Terence Bayler
Crew: James Cellan Jones (Director), Kingsley Amis (Writer), Arthur Conan Doyle (Characters)