Following a nervous breakdown, Gwen takes up the job of head teacher in the small village of Haddaby. There she can benefit from the tranquillity and peace, enabling her to recover fully. But under the facade of idyllic country life she slowly unearths the frightening reality of village life in which the inhabitants are followers of a menacing satanic cult with the power to inflict indiscriminate evil and death if crossed.
Joan Fontaine
as Gwen Mayfield
Kay Walsh
as Stephanie Bax
Alec McCowen
as Alan Bax
Ann Bell
as Sally Benson
Ingrid Boulting
as Linda Rigg
John Collin
as Dowsett
Michele Dotrice
as Valerie Creek
Gwen Ffrangcon Davies
as Granny Rigg
Duncan Lamont
as Bob Curd
Leonard Rossiter
as Dr. Wallis
Martin Stephens
as Ronnie Dowsett
Carmel McSharry
as Mrs. Dowsett
