- We're leaving here at midnight.
- But why should we leave here? I don't understand.

5 seconds sound clip from the Revenge of the Zombies (1943) movie soundboard.

You can hear this line at 00:54:25.856 in the DVD version of the movie.

Quote context

[...]

- I had a little trouble with him and he got the worst of it.

- But everywhere I hid the body, Jeff found it.

- How did you know coffee was the antidote?

- He told me. How do you know?

- Mammy Beulah told me.

- Before we go after Scott, did you find any trace of Keating?

- No, I didn't.

- You think Von Altermann did away with him?

- Perhaps.

- Dr. Von Altermann!

- We're leaving here at midnight.

- But why should we leave here? I don't understand.

- My work will be completed by then. There'll be no further reason for delay.

- You better begin packing at once, but take only the barest necessities.

(Knocking on door) (2)

- Dr. Von Altermann! Peter here, doctor! Open, please, quickly! Von Altermann!

[...]