Plot Summary:Based on a "famous" play , Spring-Heeled Jack or The Terror of London by Maurice Sandoz. Opening credits explain: At the opening of the last century, this island of ours stood alone facing the menace of Bonaparte's mastery of Europe. At this vital moment there were a few traitorous Englishmen willing to sell their country for their gain.
Based on the play Spring-Heeled Jack a families hereditary madness leads to the legend of Spring-Heeled Jack and a lot of people getting strangled.