The TARDIS arrives in 1925 England where the Doctor ends up playing in a local cricket match due to a case of mistaken identity. The travellers accept an invitation to a masked fancy dress ball, but events take on a more sinister tone as murders are perpetrated at the country home of their host, Lord Charles Cranleigh.
The Doctor
Adric
Nyssa / Ann Talbot
Tegan Jovanka
Lord Cranleigh
Lady Cranleigh
The Unknown / George Cranleigh
Sir Robert Muir
Sergeant Markham
Constable Cummings
Latoni
Brewster
Tanner
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