- I can't prove you murdered him, but I can stop you using his brain.
- Why? He has no further use for it.
- Give me that!

8 seconds sound clip from the The Curse of Frankenstein movie soundboard.

You can hear this line at 00:40:58.832 in the Blu-ray version of the movie.

Quote context

[...]

- It was the least I could do. He was a guest in my house.

- I thought I'd find you here.

- That was very intelligent of you.

- Now that you've found me, what do you want?

- You killed the old man, didn't you? You killed him and now you're mutilating his body.

- Mutilating? I've removed his brain. Mutilating has nothing to do with it.

- I can't prove you murdered him, but I can stop you using his brain.

- Why? He has no further use for it.

- Give me that!

- Don't be a fool! Be careful! You'll damage it!

- Get away from here, leave me alone! Get out of here! If you've damaged it...

- Who is it? What's the matter, Paul?

- I've come to appeal to you to leave here.

[...]