- It seems to me there's only one way out.
- And what's that?
- I've a small revolver here. Pretty little thing, isn't it? Supposing I left you alone with this?

12 seconds sound clip from the The 39 Steps (1937) classic radio play.

You can hear this line at 00:23:35 in the radio play.

Quote context

[...]

- What makes it doubly important that I shouldn't let you go is that I am just about to transfer some very vital information out of the country.

- What?

- Oh, yes. I've got it already.

- I'm afraid poor Annabella would have been too late in any case.

- Well. That's that, I suppose.

- Yes.

- Well? What about it?

- What about what?

- Yourself.

- It seems to me there's only one way out.

- And what's that?

- I've a small revolver here. Pretty little thing, isn't it? Supposing I left you alone with this?

- The newspapers could then announce tomorrow morning that the murderer had taken his own life.

- You want me to kill myself?

- Yes.

- You're mad. I won't do it.

- Then I'm afraid you leave me no alternative.

- You should have stayed in London, my friend.

[...]