See How They Run

Black Coffee is a 1931 British detective film directed by Leslie S. Hiscott. Based on the 1930 play Black Coffee by Agatha Christie featuring her famous private detective Hercule Poirot, it stars Austin Trevor as Poirot with Richard Cooper playing his companion Captain Hastings. A famous but hated scientist, Sir Amory, is killed during a house party, and some of his valuable papers are missing. Poirot rapidly determines the cause of death and the motive, then narrows down the suspects to the most likely culprit.

Actress Jane Wilkinson wants a divorce, but her husband, Lord Edgware, refuses. She convinces Hercule Poirot to use his famed tact and logic to make her case. Lord Edgware turns up murdered, a well-placed knife wound at the base of his neck. It will take the precise Poirot to sort out the lies from the alibis - and find the criminal before another victim dies.

Agatha Christie’s agents propose that it’s time for her to publish the manuscript she wrote thirty-five years earlier, a novel in which she finally kills off her most famous creation. And it’s not an entirely sad occasion. “That wretched little man,” she says. “He’s always been so much trouble. How is it Miss Marple has never upset me at all, not ever?” That night, who should appear at her doorstep but the wretched little man himself, Hercule Poirot? The great fictional detective and his creator proceed to play a very Christie-like game of cat and mouse for the manuscript – and for their own lives.

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.

In Acapulco, Hercule Poirot attends a dinner party in which one of the guests clutches his throat and suddenly dies. The causes seem to be natural until another party with most of the same guests produces another corpse.