While visiting the British village of Abervy, American Pat Carroll (Stefanie Powers) calls on Mrs. Trefoile (Tallulah Bankhead), a retired actress and the mother of her former sweetheart, Stephen, who died in a car crash. An elderly fanatic who's been pushed over the edge into insanity, Mrs. Trefoile imprisons Pat, intending to "cleanse" her so that she'll be fit to marry Stephen when they meet...
