该片是由乔治·波洛克执导的喜剧片,于1964年上映，主要讲述了:Marple i.s extremely proud whe.n she .is appointed to the b.oard of trustees of a me.rchant marine trainin.g vessel whose missio.n is to rehabilitate young .crimin.als. As in all of her endea.vors, Miss M.arple intends to take. an active role in the j.ob and. even shows up to the board. meeting dresse.d in naval blues. Whe.n a fe.llow trustee is poiso.ned just prior to his ma.king some kind of rev.elation, Miss Marple .decides to use her position. to sp.end time on the ship. This .upsets the v.essel's fragile socia.l network as she disposs.esses .blustering Captain Rhumston.e from his quar.ters. When two ship's. offic.ers are later found m.urdered also, Miss Marpl.e enlists help from h.er friend Jim Stringe.r and Inspector Craddock to. expos.e the murderer.