Harry Spalding and his wife Valerie inherit a cottage in a small country village after his brother mysteriously dies. The locals are unfriendly and his neighbor Dr. Franklyn (a doctor of theology) suggests they leave. They decide to stay only to find that a mysterious evil plagues the community.—H P Holley
In a Cornish village, various locals die from mysterious snake bites, but the coroner rules the deaths as heart attacks, until a family of newcomers starts an investigation.