The Doctor, Adric, Nyssa and Tegan find themselves in 1925 England, where through a case of mistaken identity they become involved in a charity cricket match at Cranleigh Halt. There, Nyssa discovers that Charles Cranleigh's fiancee, Ann Talbot, is her exact double.
The Cranleighs harbour a dark family secret, however: a hideous monster hidden in a secret wing of their house. Fixated on Ann, it breaks out during a costume ball and attempts to kidnap her… but takes Nyssa by mistake.
Information was most recently updated Sun Oct 10 13:54:59 2021