An evil caliph (Christopher Lee) offers his daughter’s hand in marriage to a prince if he can complete a perilous quest for a magical rose. Helped by a young boy and a magic carpet, Prince Hasan (Oliver Tobias), has to overcome genies, fire breathing monsters and treacherous swamps to reach his prize and claim the hand of the Princess Zuleira (Emma Samms).

Sherlock Holmes is drawn into the case of Jack the Ripper who is killing prostitutes in London's East End. Assisted by Dr. Watson, and using information provided by a renowned psychic, Robert Lees, Holmes finds that the murders may have its roots in a Royal indiscretion and that a cover-up is being managed by politicians at the highest level, all of whom happen to be Masons.