John Carradine narrates five horror tales, each with a comically predictable surprise ending. In the first, "The Witches Clock," the Farrells have purchased an old mansion in Salem Massachusetts and are warned by the town doctor of the history of witches in the community. The second story, "King of the Vampires," deals with a slight-figured killer called the King of the Vampires by Scotland Yard. The third, "Monster Raid," is about a man turned zombie when he ODs on his experimental drug. "Spark of Life" deals with a doctor Mendell obsessed with the experiments of a thrown-out professor named Erich von Frankenstein. "Count Alucard" is a variation on the Dracula story, with the Count acquiring the deed to Carfax Abbey from Harker as vampiresses and dead bodies start turning up.
Lon Chaney Jr.
as Dr. Mendell
John Carradine
as Narrator / Tristram Halbin
Rochelle Hudson
as Helen Spalding
Roger Gentry
as Bob Farrell / Mob Leader / Dr. Sevard / Jonathan Harker
Ron Doyle
as Brenner / Dr. Charles Spalding / Dr. Cushing
Karen Joy
as Julie Farrell / Medina, the Vampire
Vic McGee
as Dr. Finchley / Desmond / Amos Duncan / The Burgermeister
Ron Brogan
as Marsh
Margaret Moore
as Mrs. O'Shea
Gray Daniels
as The Coachman
Mitch Evans
as Count Alucard
Joey Benson
as Dr. Sedgewick
