马普尔小姐相信她在一辆路过的火车上看到了一起谋杀案，但当警方没有发现任何证据时，她决定自己调查。
Margaret Rutherford
Miss Jane Marple
Arthur Kennedy
Paul Quimper
Muriel Pavlow
Emma Ackenthorpe
James Robertson Justice
Luther Ackenthorpe
Thorley Walters
Cedric Ackenthorpe
Charles Tingwell
Inspector Craddock
Conrad Phillips
Harold Ackenthorpe
Ronald Howard
Brian Eastley
Joan Hickson
Mrs. Kidder
Stringer Davis
Jim Stringer
Ronnie Raymond
Alexander Eastley
Gerald Cross
Albert Ackenthorpe
Michael Golden
Hillman
Richard Briers
'Mrs Binster'
