Thomasina is the pet cat of Mary McDhui, the daughter of Scottish veterinarian Andrew McDhui. When Thomasina falls ill, McDhui declares that the pet should be put down. But when Mary and her father try to bury the cat, Lori MacGregor (Susan Hampshire), who is said to be a witch, shows up and attempts to steal it.
Patrick McGoohan
Susan Hampshire
Karen Dotrice
Laurence Naismith
Jean Anderson
Matthew Garber
Denis Gilmore
Vincent Winter
Finlay Currie
Elspeth March
Nora Nicholson
Francis de Wolff
Alex Mackenzie
Ruth Dunning