Miss Marple investigates the murder of one of her fellow trustees of a fund which rehabilitates young criminals. To investigate she goes aboard the ship used to train the juveniles, much to the distress of the Captain. She soon stumbles onto more murders, and a ring of thieves.

Starring:

Charles 'Bud' Tingwell, Derek Nimmo, Edna Petrie, Francis Matthews, Gerald Cross, Henry Oscar, Ivor Salter, Joan Benham, Lionel Jeffries, Lucy Griffiths, Margaret Rutherford, Miles Malleson, Nicholas Parsons, Norma Foster, Roy Holder, Stringer Davis, Terence Edmond, Tony Quinn, William Mervyn

Genre:

Drama, Comedy, Crime, Mystery