The Adventures of Sam Spade - The Wheel of Life Caper

Miss O'Farrell is in Sam's office telling him about her ordeal. She says "It was like waking out of a nightmare you can't remember. Everything seemed out of proportion on the street. I looked around for something to help me get my bearings and there was a street sign that read "O'Farrell". It stuck in my mind, so I gave it to your secretary when she asked for my name". Sam asks "What's your real name?" She says "I don't know. I don't know who I am, where I came from, or where I'm going Mr. Spade". Sam says "A lot of people suffer from temporary loss of memory. Most of them recover, but amnesia is a sickness and I am not a doctor". She says "Oh, then you won't try to help me?"  Sam says "Well, I can give you the name of a good doctor. There's also Missing Persons at the police department". She says "I'd rather not contact the police, I might be wanted for some crime. I want to find out who I am for myself". Sam says "What do you think I can do for you?" She says "You might save my life". Sam says "From what?" She says "I'll try to tell you exactly how it happened. First, I looked at my watch, it was 3 minutes past 10. The cable car stopped at the corner, a man got on, and he sat down beside me. He caught hold of my arm, and I tried to pull away. He acted as if I were...." Sam says "I think I know what you mean. Did you find out who he was?" She says "No, I was too frightened to speak". Sam asks "What did he say?" She says "He sort of growled it out of the side of his mouth, but it sounded as if he said Mr. Lathrup wants to see you".