'The lake of Satan'), also known as Revenge of the Blood Beast, is a 1966 horror film written and directed by Michael Reeves in his directorial debut.

[5] In present-day Vaubrac, Transylvania, Count Von Helsing reads a historical narrative from two hundred years before about the execution of Vardella, a woman accused of witchcraft.

Shifting to present day, a young, newly married British couple, Philip and Veronica, are traveling on their honeymoon and book a room in a hotel owned by alcoholic and voyeur Ladislav Groper.

While Groper carries their bags to the room, the couple has tea outdoors at a picnic table, and soon is approached by Von Helsing, who seems anxious to befriend them and to relate the history of the Draculas to them.

The next day on the road, Philip loses steering control of the car, causing him to drive into a lake; a passing truck driver assists in retrieving what should have been Veronica but to his horror, is a monstrous corpse that looks a lot like the aforementioned Vardella, which he quickly wraps up.

In the nick of time, two hundred years to the minute since, and in the same place as, the murder of Vardella, Philip and the Count perform the exorcism ritual at the lake.

Special features include an image gallery and an audio commentary by producer Paul Maslansky and actors Ian Ogilvy and Barbara Steele.