As a bedtime story, Della tells Sabrina the gruesome tale of Frank, a wealthy old man who uses an old gothic mansion to play a little joke on his young newlywed friends Charles and Lizbeth -- a joke that turns deadly when the groom falls from the balcony of the mansion. Frank marries the young widow to console her and brings her back to the mansion as his bride, only to be confronted by the haggard form of Charles. After Frank plunges to his death from the same balcony, it turns out that this was all a plot hatched by Charles (who faked his death) and Lizbeth to kill Frank and get his money. But Frank returns as an actual undead figure to scare the two conspirators literally to death.; Archie and Jughead visit Sabrina's house, much to Aunt Hilda's annoyance.; Sabrina zaps Ethel and makes all the boys abandon their girlfriends to fight over her.; Aunt Hilda turns Harvey into a dog.