Edna Petrie

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.

When a law-abiding demolition expert is duped by a gang of criminals into helping them he is caught and jailed. When he is released he goes straight and then notices a leading citizen in his town is cheating his neighbours.

A young factory worker stands alone against a proposed strike.