- Then there were three more murders.
- So which of us killed them?

4 seconds sound clip from the Clue (1985) movie soundboard.

You can hear this line at 01:19:05.750 in the Blu-ray version of the movie.

Quote context

[...]

- We forgot the cupboard with the weapons was now unlocked.

- Then we split up again, and the murderer switched off the electricity.

- Oh my God!

- Not again.

- Turn on the lights!

- Sorry. Didn't mean to frighten you.

- You're a bit late for that! I hate when he does that.

(Mrs. White screams softly)

- Then there were three more murders.

- So which of us killed them?

- None of us killed Mr. Boddy or the cook.

- So who did?

- The one person who wasn't with us. Yvette.

- Yvette?

- She was in the billiards room listening to our conversation.

- She heard the gunshot. She thought he was dead.

- And while we all examined the bullet hole, she crept into the study, picked up the dagger, ran to the kitchen, and stabbed the cook.

[...]