"Mesdames, Mademoiselle, Messieurs — the reason I asked you to meet me here this morning — please, Monsieur — is that I, Hercule Poirot, have discovered the identity of the murderer of Madame Marshall. This need surprise no one. Are you all comfortable? Even the murderer?"
January 1, 1970
https://en.wikiquote.org/wiki/Evil_Under_the_Sun_(1982_film)