England in the 1920s.
Whilst K9 is off in the TARDIS leading the Black Guardian on a wild goose chase, the Doctor and Romana are enjoying a leisurely lifestyle as the Lord and Lady of a London townhouse. But trouble never stays away from them for long, and before they know it a chance discovery of alien technology leads them deep into the heart of the English countryside where a malign presence lurks.
As the Doctor dodges deadly butlers and ferocious gamekeepers, Romana is faced with a malevolent Aunt and an even deadlier peril - marriage.
Tom Baker (The Doctor), Mary Tamm (Romana), Julia McKenzie (Florence), Robert Portal (Reggie), Lucy Griffiths (Mabel), Alan Cox (Grenville), Jane Slavin (Ligeia)