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.

When actress Diana Baring is found in a daze beside her colleague’s murdered body, all evidence points to her guilt. During the trial, juror Sir John Menier doubts the verdict, but yields to pressure. Haunted by remorse, he launches his own investigation.

'Farmer loves singer whom his half-brother marries and abandons with baby.' (British Film Catalogue)

A girl refuses the attentions of a young playboy with whom her sister is in love.

Sexton Blake and Tinker foil criminal plot connected with the Tongs, and master-minded by "famous stamp collector" and millionaire.

Pre-war intelligence man Tommy Blythe interrupts his honeymoon to investigate the discovery of vital Air Ministry blueprints on a woman killed in a London road accident. The trail leads to a boarding house in Notting Hill and its varied tenants.

As criminals assemble for a convention, a policeman investigates and is abducted. A young woman finds his whistle and blows it. The full forces of the law assemble. The confrontation between order and disorder ensues, with our heroine caught up in it.

Twenty years removed from Alice Barlow's murder by a thief looking for her jewels, newlyweds Paul and Bella Mallen move into the very house where the crime was committed. Retired detective B.G. Rough, who worked on the Barlow case, is still in the area and grows suspicious of Paul, who he feels bears a striking resemblance to one of Barlow's relatives. Rough must find the truth before the killer can strike again and reclaim his bounty.

A tale of two feuding families whose offspring cause uproar when they announce their marital plans.

Ivan Petrov has one weakness in his life, and one love: his little black-eyed daughter, Tania. In fact, his entire career is devoted to her future happiness, though Tania remains ignorant as to his vocation. Done with cool deliberation, Petrov's all-consuming fear is that one day his lovely daughter will discover his true profession, and despise him for it...