When a London housewife and mother is terrorized by anonymous phone calls and threats, her husband questions her sanity.

Expecting to spend a peaceful summer in a rented old farmhouse, Diana Garson unexpectedly becomes involved in evil and horror when she encounters the people from the sea.

A historical sleuth in Victorian England solves an 11th century murder by reading manuscripts in a cathedral library. While there, a real-life murder occurs and he turns sleuth, but his sleuthing is a fiasco, casting doubt on his earlier findings and therefore his integrity as a historian.