Murder Ahoy! is the last of four Miss Marple films, made by MGM and starring Margaret Rutherford. As in the three previous films, Margaret Rutherford plays Miss Jane Marple, Bud Tingwell is (Chief) Inspector Craddock and Stringer Davis (Rutherford's real-life husband) plays Mr Stringer.
The film was made in 1964 and directed by George Pollock, with David Pursall and Jack Seddon credited with the script. The music was by Ron Goodwin.
Unlike the previous three that were very loosely based on novels by Agatha Christie, this one was not and it employs an original screenplay. It does, however, borrow a few obscure plot details from They Do It with Mirrors (but otherwise bears no resemblance at all to that Miss Marple novel); and it pays at least nominal homage to Christie's long-running play, The Mousetrap.
The action takes places mainly on board an old wooden-walled battleship, HMS Battledore, which has been purchased by a Trust for the rehabilitation of young criminals, and intended by...