Don't you see? Look.
3 seconds sound clip from the Clue (1985) movie soundboard.
You can hear this line at 01:13:32.937 in the Blu-ray version of the movie.
Quote context
[...]
- And you also knew her, sir. We've already established that you were one of Miss Scarlet's clients.
- Mr. Boddy threatened to send those pictures to my dear old mother. The shock would've killed her.
- That would've been quite an achievement, since you told us that she's dead already.
- But where and when was Mr. Boddy killed?
- We came back to the study with Yvette.
- Mr. Boddy was on the floor, pretending to be dead, but one of us knows he's alive.
- So I explained that I was Mr. Boddy's butler and I'd invited you here.
- And we realized there was only one other person in the house. The cook!
[...]