Don't try it, sweetheart. I'll make this a flat statement. I'll kill you.

— Walter O'Neil (Kirk Douglas)

8 seconds sound clip from the The Strange Love of Martha Ivers movie soundboard.

You can hear this line at 01:16:39.483 in the Blu-ray version of the movie.

Quote context

[...]

- We're ready to listen to the current quotation on blackmail.

- Blackmail?

- I said blackmail. Now, what is the price? Remember you are dealing with two old friends.

- Well, which one of you do I deal with?

- With me. Be at my office at the plant at 3:00.

- Okay.

- May the deal be profitable, to all of us.

- Whatever the price is, that's it, Sam. Don't try this again.

- What happened last night can happen again, and worse.

- Don't try it, sweetheart. I'll make this a flat statement. I'll kill you.

- Hold your hand under the water. Now dry your hand.

- This will hurt.

- Even pain at your hands.

- You were lucky.

- Yes, I'm a very lucky man.

- And a stupid one.

- Yesterday afternoon he told me he didn't want anything. That he was going away. If you had let me handle it...

[...]