The story gets under way at a weekend house party where a scientist is murdered and his secret papers stolen. Putting his "little grey cells" in action, Belgian detective Hercule Poirot methodically pieces together the clues, revealing the culprit to be -- you guessed it -- the Least Likely Suspect.

casts

René Alexandre

Maxime Desjardins

Gaston Dupray

Alice Field

Danielle Darrieux