Jane Marple (Joan Hickson) may not be the youngest of them all, but in the 1930s she solves the most baffling criminal cases, regularly outshining professional detectives in the process.
Faced with two false confessions and numerous suspects after a despised civil magistrate is found shot in the local vicarage, Detective Inspector Slack reluctantly accepts help from Miss Marple.
Both Inspector Slack and Miss Marple put their respective plans into action to unmask Colonel Protheroe's killer. Christopher Hawes reports that he's been hearing voices, but has he perhaps heard something that he shouldn't have?
A young woman is haunted by feelings of fear and dread, and turns to Miss Marple in order to understand what may have happened in her childhood.
Gwenda and Miss Marple are closer to understanding the mystery of a seemingly perfect crime from many years previously.
Miss Marple takes a well earned holiday at Bertram's, a Hotel she stayed in as a child. It seems familiar, but underneath the dainty teas and classy clientele, Bertram's hides a secret.
Canon Pennyfather returns to Bertram's, but struggles to explain his disappearance, could he have been on The Irish Mail Train, robbing it?
Miss Marple receives word that her friend Jason Rafiel has died. In his will, he asks that she attended a coach tour, her aim, to unearth a mystery.
Elizabeth Temple is badly injured, she sends for Jane Marple, and manages to relay one piece of information, 'ask them about Verity.'
A friend of Miss Marple's, Mrs. McGillicuddy, is travelling on the 4.50 from Paddington when she sees a man strangling a woman on a neighbouring train. The police turn up nothing and don't believe her but Miss Marple does. She believes the answer to the mystery lies at nearby Rutherford Hall. She enlists the help of her resourceful, energetic niece Lucy Eyelesbarrow, who investigates Rutherford Hall by working there as a housekeeper.
While on vacation at a resort hotel in the West Indies, Miss Marple correctly suspects that the apparently natural death of a retired British major is actually the work of a murderer planning yet another killing.