The recently married Alix Martin is obsessed with a recurring dream of her new husband's murder. Each time she can see the murderer clearly, and it's the mild-mannered man she had previously been engaged to, taking his revenge. But, what's worse is that at the end of the dream she thanks the murderer. Perplexed, Alix tries to calm herself by spending time in the garden of her picturesque cottage. But her gardener confuses her further by wishing her well on her trip to London - a trip which Alix knows nothing about. Now Alix is scared: Is the gardener imagining things, or is she?

On a dark evening, Mr. Harley Quin appears at the door of Royston Hall under the premise that his car has broken down. Once inside, he embarks upon the tragic tale of Royston Hall's former occupants, leading to a dramatic change in the perceptions of the current inhabitants - but has Mr. Quin's revelation come too late?

At Mr. and Mrs. Unkerton's party in Greenway's House, Mr. Satterthwaite learns of a haunted window: No matter how many times it is replaced, it always contains the image of a gentleman in a plumed hat. When gunshots are heard, Satterthwaite finds that two of the guests have been shot dead, which is shortly followed by a sighting of the gentleman in the newly-replaced windowpane. Can Mr. Quin shed light on the mystery?

Waiting for his car to be fixed, Mr. Satterthwaite sits in a tea shop called the Harlequin cafe, thinking of his friend Harley Quin, whom he hasn’t seen in many years. Then, in a burst of sunshine, the very same Mr. Quin walks through the door, along with his diligent dog, Hermes. Satterthwaite is telling him the very long history of the family he is off to visit, when their conversation is interrupted by the abrupt entrance of a member of that very same family, intent upon replacing her harlequin cups.

When Mr. Satterthwaite visits a new exhibit at the Harchester Galleries, there is one painting that bears an unusual likeness to a mysterious acquaintance of his, Mr. Quin. In one bold move he purchases the canvas on the spot, and in another invites the artist of "The Dead Harlequin" to dine with him that night, with an empty place at the table set for Mr. Quin. Dinner conversation soon turns to the setting of "The Dead Harlequin", the doomed and ghostly house Charnley, where many have perished under tragic circumstances.

Major Hastings and Hercule Poirot are not interested in the mystery of the Spanish chest, which has been reported in the papers so often that it seems to be an entirely closed case. But, when Hastings persuades Poirot to attend a fabulous party given by Lady Chatterton, they discover someone sequestered upstairs who is desperate for their help. Will the contents of a dead man's pockets reveal to the inscrutable eye of Hercule Poirot who the culprit is?

Three critically acclaimed recordings are joined together in this dazzling Agatha Christie Triple Bill, read by award-winning narrators Alison Larkin and James Warwick, star of the Partners in Crime TV series on Masterpiece Theater.

From the brilliant pen of Agatha Christie comes two novels featuring the beloved sleuthing duo: In the The Secret Adversary, Tommy and Tuppence decide to embark on a daring business scheme: Young Adventurers Ltd. But they get more than they bargained for when their first assignment for the sinister Mr. Whittington draws them into a diabolical conspiracy. Set during the dark days of World War II, Agatha Christie’s N or M? puts two most unlikely espionage agents, Tommy and Tuppence Beresford, on the trail of a pair of Nazi spies who have murdered Britain’s top agent.

Lytcham Close, one of the oldest stately homes in England, is owned by the last remaining heir and ruled by his intolerable whims. Old Hubert demands complete silence when he plays music and times dinner exactly by a resounding gong. Rushing down at the sound of the second - or is it the first? - gong, Joan Ashby is about to find out that not only is dinner delayed, but something is going on that no one can explain. Everyone is thrown into disarray when Old Hubert never materializes and instead a new guest is announced: Hercule Poirot himself.

A young banker is suspected of stealing one million dollars in Liberty Bonds on a transatlantic journey to New York, and appeals to Hercule Poirot to clear his name. Poirot learns the identities of the three people who hold keys to the locked trunk, but it won't be as easy to identify the true thief.

An alarming telephone call, in which the phrases “it’s life and death” and “the table with the yellow irises” are whispered, causes Hercule Poirot to rush to the luxuriant restaurant Jardin des Cygnes, desperate to stop an impending murder and find the person behind the voice on the phone. After bumping into an old acquaintance, he is invited to join a dinner party in full swing. But, just as the dancing and champagne are overflowing, a morbid announcement is made and the lights go out.

The Man in the Brown Suit is Agatha Christie at her best, as a young woman makes a dangerous decision to investigate a shocking “accidental” death she witnesses at a London tube station. In Agatha Christie’s classic crime adventure novel, They Came to Baghdad, a bright young adventure seeker in the Middle East finds more excitement than she bargained for when a wounded spy expires in her hotel room.

Ten strangers are lured to an isolated island mansion off the Devon coast by a mysterious "U.N. Owen". At dinner a recorded message accuses each of them in turn of having a guilty secret, and by the end of the night one of the guests is dead. Stranded by a violent storm, and haunted by a nursery rhyme counting down one by one...one by one they begin to die. Who among them is the killer? And will any of them survive?

Maria Packington suspects her husband of having an affair. In an attempt to revitalise her marriage, she responds to an ad from Mr. Parker Pyne - who promises to provide solutions to unhappiness. Maria's life soon undergoes a rapid transformation....

Jane Marple is an elderly lady from St Mary Mead who possesses an uncanny knack for solving even the most perplexing puzzles. Now, for the first time in 45 years, Agatha Christie’s beloved character returns to the page for a globe-trotting tour of crime and detection. Join Marple as she travels through her sleepy English village and around the world. In St Mary Mead, a Christmas dinner is interrupted by unexpected guests; the Broadway stage in New York City is set for a dangerous improvisation.

On a dark evening, Mr. Harley Quin appears at the door of Royston Hall under the premise that his car has broken down. Once inside, he embarks upon the tragic tale of Royston Hall's former occupants, leading to a dramatic change in the perceptions of the current inhabitants - but has Mr. Quin's revelation come too late?

At Mr. and Mrs. Unkerton's party in Greenway's House, Mr. Satterthwaite learns of a haunted window: No matter how many times it is replaced, it always contains the image of a gentleman in a plumed hat. When gunshots are heard, Satterthwaite finds that two of the guests have been shot dead, which is shortly followed by a sighting of the gentleman in the newly-replaced windowpane. Can Mr. Quin shed light on the mystery?

It had been a typical New Year's Eve party. But as midnight approaches, Mr. Satterthwaite - a keen observer of human nature - senses that the real drama of the evening is yet to unfold. And so it proves when a mysterious stranger knocks on the door. Who is this Mr. Quin? Mr. Satterthwaite's new friend is an enigma. He seems to appear and disappear almost like a trick of the light. In fact, the only consistent thing about him is that his presence is always an omen - sometimes good, but sometimes deadly....

Every morning at the same hour on the golf course, Jack Hartington hears mysterious cries for help coming from a cottage. He speaks to the resident and learns that she has unsettling dreams of a woman with a blue Chinese vase. Believing that the cries for help are from the late Mrs. Turner, the former resident of the cottage, Jack hires a psychic investigator to spend a night in the house, a night which proves to have startling results.

When Mr. Satterthwaite visits a new exhibit at the Harchester Galleries, there is one painting that bears an unusual likeness to a mysterious acquaintance of his, Mr. Quin. In one bold move he purchases the canvas on the spot, and in another invites the artist of "The Dead Harlequin" to dine with him that night, with an empty place at the table set for Mr. Quin. Dinner conversation soon turns to the setting of "The Dead Harlequin", the doomed and ghostly house Charnley, where many have perished under tragic circumstances.