Miss Marple believes she's seen a murder in a passing-by train, yet when the police find no evidence she decides to investigate it on her own.

During an annual board of trustees meeting, one of the trustees dies. Miss Marple thinks he’s been poisoned after finding a chemical on him. She sets off to investigate at the ship where he had just come from. The fourth and final film from the Miss Marple series starring Margaret Rutherford as the quirky amateur detective.

Lady Booby alias 'Belle', the lively wife of the fat landed squire Sir Thomas Booby, has a lusty eye on the attractive, intelligent villager Joseph Andrews, a Latin pupil and protégé of parson Adams, and makes him their footman. Joseph's heart belongs to a country girl, foundling Fanny Goodwill, but his masters take him on a fashionable trip to Bath, where the spoiled society comes mainly to see and be seen, but drowns in the famous Roman baths. When the all but grieving lady finds Joseph's Christian virtue and true love resist her lusting passes just as well as the many ladies who fancy her footman, she fires the boy. He's found and nursed by an innkeeper's maid, which stirs lusts there, again besides his honorable conduct, but is found by the good parson.

A student commits murder. He inherits his victim's estate. For a while, he is content, but finally his conscience starts to trouble him.

When Percy Brand, a habitual confidence trickster, keeps being sent down, he goes to great lengths to ensure that his son Colin, does not find out about his criminal past. But when Colin becomes an assistant to the Judge, who is about to try Percy for his latest escapade, Percy and his gang have to come up with a plan, to stop them meeting in court.

Good natured comic caper charting the misadventures of a hapless bunch of Brighton based petty crooks dogged with disaster at every turn.