Miss Marple and Mr. Stringer are witnesses to the death by heart attack of elderly, rich Mr. Enderby. Yet they have their doubts about what happened. The police don't believe them, thus leading Miss Marple to yet again investigate by herself.
Margaret Rutherford
as Miss Jane Marple
Stringer Davis
as Jim Stringer
Robert Morley
as Hector Enderby
Flora Robson
as Miss Milchrest
Charles Tingwell
as Inspector Craddock
Gordon Harris
as Sergeant Bacon
Robert Urquhart
as George Crossfield
Katya Douglas
as Rosamund Shane
James Villiers
as Michael Shane
Noel Howlett
as Mr. Trundell
Finlay Currie
as Old Enderby
Duncan Lamont
as Hillman