I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Dr. Jekyll and Mr. Hyde Movie plot: In London, in 1887, prominent physician Henry Jekyll incurs the ire of his older colleagues because of his experiments and views on the possibility of separating the good and evil aspects of man's nature. Hanry is deeply in love with Beatrix Emery, the daughter of Sir Charles Emery, who likes Henry, but is concerned over his radical ideas and open display of affection for Bea. Henry throws himself into his work and has enough success experimenting with rabbits and guinea pigs to make him confident that the serun he has developed will work for humans. Hoping to try the serum out on Sam Higgins, a man who went mad after being in a gas works explosion, Henry rushes to the hospital but discovers that Higgins has just died. Henry then decides to take the serum himself and is briefly transformed, in both thought and countenance, into an evil alter ego. After taking an antidote to turn himself back to normal, Henry tells his butler, Poole, that strange voice he heard was a "Mr. Hyde".Just then, Sir Charles, accompanied by Bea, comes for a visit and announces that he will be taking Bea to the Continent to give Henry time to consider his position. Despite his loneliness during Bea's absence, Henry refrains from further experimentation until he gets a letter from Bea explaining that their trip is being extended because of Sir Charles' health. After taking another dose of the serum, Henry again turns into Hyde and goes to a music hall, where hees a baramid Ivy Peterson, an beautiful, sensual young woman whom he rescued from an attacker some weeks before. When summoned to Hyde's table, Ivy does not recognize him as Henry, but becomes frightened and screams, causing a brawl to erupt among the customers. Hyde later secretly asks the proprietor to fire Ivy and, despite her reluctance, insists on taking her home in a carriage, where he forces himself on her.Some time later, Bea is concerned that Henry has not written to her in weeks, but hides her worries from her father, who decides that she and Henry may marry, after... My question: Who does Jekyll promise Ivy will never have to worry about again?
Answer:
Hyde