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.
Following a killing and robbery in a big city back east, gang leader Kedge Darvas and some of his henchies take a train to a small western town in Idaho, with intentions of hiding out there until things cool down back in Chi or NYC, or wherever they lammed from.
A smart young manicurist works in a hotel where she earns big money by tricking businessmen by persuading them to do certain deals where she has a commission.
The story, about the social interaction of a group of railway passengers who have been stranded at a remote rural station overnight who are increasingly threatened by a latent external force.