- Detective William Murdoch: Do you think my neighbours believe I am guilty?
- Detective Llewellyn Watts: That is of no consequence.
- Detective William Murdoch: It is if I have to see them every day.
- Inspector Thomas Brackenreid: Well, if they believe you to be a killer, at least you will have your privacy.
- [chuckles]
- Detective Llewellyn Watts: Supposing Murdoch was guilty... It's hardly a disloyal hypothesis, George. He's suspected each of us of murder at one time or another.
- Inspector Thomas Brackenreid: There is no telling what darkness lurks in the heart of a man, Crabtree.
- Constable George Crabtree: Sir! I know what lurks in the heart of William Murdoch! It is a passion for justice, a respect for science, and a desire to create ingenious automated machines that might one day save us from doing housework. He has more integrity than any man I know, and would sooner move house to... Mars than kill a vexatious neighbour. And you know what? That's it. I refuse to hear any more on the subject!