- I demand to know why we are here!
- Before dinner?

5 seconds sound clip from the The Thin Man (1936) classic radio play.

You can hear this line at 00:46:17 in the radio play.

Quote context

[...]

- Inspector Guild? You and your men will stand by the door, please.

- Sure.

- Fine. Now Nora, you'll sit here by me.

- Delighted, Mr. Charles.

- With pleasure, Mrs. Charles.

- Now we're all ready to begin.

- Would you please pass the celery, Mrs. Wynant?

- No I will not.

- I demand to know why we are here!

- Before dinner?

- All right, I've got some very important news.

- I've seen Wynant. Certainly I mean it.

- That's nothing. I saw him myself.

- When?

- Last night. He came to see me at my apartment.

- Oh, did he? What did he say?

- He didn't say very much. Wanted to know how I was and how the children were.

[...]