Miss Marple in going through the things in Gladys' room did not find the letter. She then wrote a letter but never got round to posting it before she got killed. After the death of Rex Fortescue Gladys tried to call Miss Marple but she was not at home. There is a letter to Miss Marple in this adaptation.However on returning to St Mary Mead, Miss Marple finds a letter from Gladys with a photograph, thus giving the evidence that is needed. Inspector Neele is left with the challenge of assembling the evidence against Lance. In the original Miss Marple simple tells Neele her conclusions. Lance tries to reverse the car to get away but a lorry crashes into his car and kills him. When Pat is upset, Lance tells her to get out of the car. When Lance sees a police car shadowing them, he knows the game is up and stops the car annd confesses his crimes to Pat. Miss Marple tells Inspector Neele to stop them and he chooses to trust her. Here Miss Marple sees Lance and Pat drive away after having obtained the deed to the Blackbird Mine. The ending in the adaptation differs significantly from the novel.Miss Marple says that she visited her but that her mind was almost completely gone and there was nothing useful to be learned from her. Mrs Mackenzie is mentioned but does not appear in the adaptation.At the end of the show Jennifer states that she would be leaving Percival. In the episode there is a big argument between Percival and Jennifer which Adele speculates is because Jennifer now has her own money after Rex's death.Miss Marple tells Neele about the rhyme in person. She talks to Pat first who brings her to Inspector Neele. She is let in by the police who suppose she is an elderly relative of the family. In the novel, Miss Marple reads about the deaths of Adele and Gladys.

The police did not allow her into the grounds so she writes a note mentioning the nursery rhyme to Inspector Neele which he ignores and later regrets it. Here she arrives just around time Adele and Gladys are killed. Miss Marple arrives early on scene than in the novel.In the novel, it was Elaine who received a bequest. Jennifer Fortescue has a separate bequest of 40,000 pounds in Rex Fortesque's will in this adaptation, a fact which gives her much more of a motive and makes her a plausible suspect.The characters of Elaine Fortescue and Gerald Wright are deleted.Miss Ramsbottom is renamed Miss Henderson but fulfils the same role.The episode is a faithful faithful adaptation of the original novel with a number of changes:

A pocketful of rye marple