A housemaid falls in love with Dr. Jekyll and his darkly mysterious counterpart, Mr. Hyde.

Mary Reilly: He said you have an illness. What kind of an illness?
Dr. Henry Jekyll: You might call it a fracture in my soul, something which left me with a taste for oblivion.
Dr. Henry Jekyll: It was the only way he could devise to set you free. It was inevitable from the moment I found how to achieve what I'd always wanted... To be the knife as well as the wound. Would you have ever forgiven me? I wanted the night... you see... and here it is...
[last lines]
Dr. Henry Jekyll: I wanted the night, you see. A - and here it is.
Mary Reilly: You said you didn't care what the world thought of you. Nor will I.
Mr. Edward Hyde: I feel differently with you. Why should that be? You still the rage.
Mary Reilly: Where does it come from, Sir, this rage?
Mr. Edward Hyde: How should I know? It comes in like the tide.
Mr. Edward Hyde: I am the bandit. He is merely the cave in which I shelter.
Mr. Edward Hyde: [to Mary] I always knew you'd be the death of us.
Mary Reilly: Is Evil stronger than Good?
Mr. Edward Hyde: You tell me.
Mary Reilly: [Upon seeing her mother's corpse] A poor wage for a lifetime's drudgery!
Mr. Edward Hyde: I am sorry. I thought you were planning to stay a while. But perhaps my sense of smell deceives me.
Mrs. Farraday: My answer is always "Yes!"
Mrs. Kent: [referring to her first glimpse of Hyde] He came out of the dark as if he was made of it.
[first lines]
Dr. Henry Jekyll: I'm not going to bite you.
Mary Reilly: I'm sorry, sir, you gave me a fright.
Dr. Henry Jekyll: You're up very early.
Mary Reilly: I'm generally up by five, sir, otherwise I get behind.
Dr. Henry Jekyll: When we had our talk, you refused to say you hated your father.
Mary Reilly: I don't.
Dr. Henry Jekyll: Why not?
Mary Reilly: He put a dark place in me and I can't forgive him for that, but it's part of me now, and how can I regret what I am? Though it often makes me sad.
Dr. Henry Jekyll: Oh, well, sadness, yes, that can't helped. That comes in like the tide.
Dr. Henry Jekyll: Haven't you ever wished for a completely new life, Mary?
Mary Reilly: No sir. What good would that do?
Dr. Henry Jekyll: I mean, suppose you were able to do absolutely whatever you wanted, with no consequences and no regrets? Then what?
Mary Reilly: I don't believe there's such a thing as actions without consequences.
Mary Reilly: Dr. Jekyll and Mr. Hyde would like some tea.