- You'll never get away with it.
- I thought you would say that, but I will get away with it.

10 seconds sound clip from the Back for Christmas (Suspense) classic radio play.

You can hear this line at 00:20:12 in the radio play.

Quote context

[...]

- Hubert, I absolutely refuse... Hubert, what are you doing? Take your hands off my neck.

- I will, just as soon as I've finished the arrangements for my trip to America.

- What are you talking about?

- You thought you were the only one who could plan things, didn't you? Well, I've been making some plans of my own this past week.

- In exactly 2 minute and 16 seconds you'll be dead. You see, I've planned it very accurately.

- You'll never get away with it.

- I thought you would say that, but I will get away with it.

- You won't mind the smell of the leaf-mold down in the cellar when I take you down there today.

- Yes, that's where you're going. Into my devil's garden that annoyed you so much.

- My friends all expect me back for Christmas. If they don't here from me, they'll start asking questions.

- No they won't. Because you'll write them letters on the typewriter as you always do.

[...]