The Gorgon

The Gorgon is a 1964 British horror film directed by Terence Fisher for Hammer Films.

The year is 1910. In the rural German village of Vandorf, seven murders have been committed within the past five years, each victim having been petrified into a stone figure. Rather than investigate it, the local authorities dismiss the murders for fear of a local legend having come true. When a local girl becomes the latest victim and her suicidal lover made the scapegoat, the father of the condemned man decides to investigate and discovers that the cause of the petrifying deaths is a phantom. The very last of the snakehaired Gorgon sisters haunts the local castle and turns victims to stone during the full moon.The Gorgon sisters of Greek legend were named Stheno, Euryale, and Medusa. In the film, they are referred to as Tisiphone, Megaera, and Medusa. One character theorizes the Gorgon on the loose to be Megaera. ........

Source: Wikipedia