- Lord Peter Wimsey: Tonight, Charles and I hold high revel. Tonight he shows me all the bloody footprints.
- [Helen starts to protest]
- Lord Peter Wimsey: It's all right, Helen. That's not swearing, that's an adjective of quality.
- [the Dowager Duchess goes to support her son in prison]
- Helen, Duchess of Denver: At a time like this! Acting as though she were the mother of some Croyden bank clerk caught dipping into the petty cash.
- Lord Peter Wimsey: I told you you were going to be upset, old girl.
- Helen, Duchess of Denver: I am! Deeply upset.
- Lord Peter Wimsey: By Jove! An emotional outburst from the Ice Queen herself. Never thought I'd live to see the day.
- Lord Peter Wimsey: [Commenting on Helen's outfit] Helen, you look stunning in adversity. They nailed her colors to the mark - a Roman matron to the last!
- Freddy Arbuthnot: Is that in the Oxford Dictionary of Quotations?
- Lord Peter Wimsey: Not yet, but it will be. Give it another ten years.
- Freddy Arbuthnot: Peter? We're expecting Peter?
- Rachel Arbuthnot: One doesn't expect Peter, Bunny. Either he's all over you when least wanted or knows every pound when he is.
- Lord Peter Wimsey: It's rather a good idea to keep one's crimes in the family. One has certain, far more facilities.