A string of strange tragedies and murders bedevils the picturesque town of Dryden, N.Y., for 10 years, beginning with the cold-blooded execution of an entire family at Christmastime.

An American village is visited by some unknown life form which leaves the women of the village pregnant. Nine months later, the babies are born, and they all look normal,…

In a small English village everyone suddenly falls unconscious. When they awake every woman of child bearing age is pregnant. The resulting children have the same strange blond hair, eyes…