The ghostly apparition of a young womanis witnessed by an 18th Century French Lieutenant in Napoleons army. After two failed attempts to keep up with her,Lt. Andre Duvalier (Nicholson)heads to the castle of Baron Von Leppe (Karloff), where he noticesa painting of the Barons latewife Ilsa, who looks identical to the ghostly woman. Duvalier is now determined to unravel the castles mystery, and the Barons hidden secrets. Though officially credited to Roger Corman, The Terror had a total of five collaborative Directors, including Nicholson himself, and Francis Ford Coppola.