Murder Most Foul (1964)

When a wealthy old man appears to have been "frightened to death" by a cat, Miss Marple suspects one of his four relatives, all heirs to his estate, of his murder.

After Miss Marple is made a trustee of a merchant marine training vessel, a fellow trustee is poisoned, and ship's officers are later murdered after she comes on board.

When Miss Marple reports witnessing a murder through the window of a passing train, the police dismiss her as a dotty spinster when no trace of the crime can be found.

Hercule Poirot investigates a series of murders in London in which the victims are killed according to their initials.

Miss Jane Marple comes to solves the mystery when a local woman is poisoned and a visiting movie star seems to have been the intended victim.

Trying to find how a millionaire wound up with a phony diamond brings Hercule Poirot to an exclusive island resort frequented by the rich and famous. When a murder is committed, everyone has an alibi.

When Carrie Louise Serrocold suspects that someone is trying to poison her, she sends for the one person who might be able to help - her old friend Miss Marple.

As Hercule Poirot enjoys a luxurious cruise down the Nile, a newlywed heiress is found murdered on board. Can Poirot identify the killer before the ship reaches the end of its journey?

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

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

Ten people are invited to a luxury mountaintop mansion, only to find that an unseen person is killing them one by one. Could one of them be the killer?

When a former prison wardress who dominates the lives of her three adult stepchildren and her daughter is found dead at an archaeological dig near the Dead Sea, there are a great many suspects.