- And don't leave the house. I'll get to you later.
- Very good, sir.

3 seconds sound clip from the The Bat (1959) movie soundboard.

You can hear this line at 00:45:37.490 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, this is Warner, Lieutenant. He's my butler. He was my chauffeur.

- Why'd you promote him?

- Well, it's very difficult to find a butler. They don't like service in the country.

- Have you been a butler before?

- I've served in many capacities, sir, but this was my night off, and I forgot my keys.

- I heard that part.

- What time did you leave the house tonight?

- Oh, about 6:30. I had dinner at Wiley's roadhouse.

- Can you prove where you spent the rest of the evening?

- I can try.

- Try hard.

- And don't leave the house. I'll get to you later.

- Very good, sir.

- I shall be in my room, Miss Van Gorder, if you need me.

- Yes, Warner.

- Surely, you don't think he's...

- Warner and I have met before. I can't recall where or when, but I will.

- There will be a crew here shortly from headquarters, dusting for fingerprints, taking photographs.

[...]