Hercule Poirot receives a strange dinner party invitation from an acquaintance. When they are finished playing bridge that evening, said acquaintance is found dead; stabbed in a room with four other people. One of them is the murderer and all of them claim that they have seen nothing suspicious that evening.
This was not the best version of Poirot, he was a bit vague in this story and I’m curious to get to know this Ariadne Oliver more.
An old lady is murdered and a man is found guilty for the crime. But the police in charge of the investigation is not satisfied, but as he is now retired, he asks Poirot to help him out. Poirot quickly links the murder to an article about women who have been linked to criminal activities in the past. While investigating he also bumps into Mrs Oliver who happens to be in the same town. And together they solve the crime.
These three stories are found in the Complete Ariadne Oliver volume 1. Also included in it are two short stories; the Case of of the Discontented Soldier and the Case of the Rich Woman. These stories are about Parker Pyne, a private investigator who makes people happy. The stories are as unlike Poirot as possible, the only thing they have in common is Ariadne Oliver.