Locked in a school closet during Halloween 1962, young Frank witnesses the ghost of a young girl and the man who murdered her years ago. Shortly afterward he finds himself stalked by the killer and is soon drawn to an old house where a mysterious Lady In White lives. As he discovers the secret of the woman he soon finds that the killer may be someone close to him.

Taran is an assistant pigkeeper with boyish dreams of becoming a great warrior. However, he has to put the daydreaming aside when his charge, an oracular pig named Hen Wen, is kidnapped by an evil lord known as the Horned King. The villain hopes Hen will show him the way to The Black Cauldron, which has the power to create a giant army of unstoppable soldiers.