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.
Margaret Rutherford
as Miss Jane Marple
Lionel Jeffries
as Captain Rhumstone
Stringer Davis
as Jim Stringer
Charles Tingwell
as Inspector Craddock
William Mervyn
as Breeze-Connington
Henry Oscar
as Lord Rudkin
Joan Benham
as Alice Fanbraid
Nicholas Parsons
as Dr. Crump
Miles Malleson
as Bishop
Derek Nimmo
as Sub-Lt. Eric Humbert
Gerald Cross
as Brewer
Norma Foster
as Asst. Matron Shirley Boston
